A stronger-than-normal polar vortex is taking shape over the North Pole. That might sound like a recipe for a brutally cold winter, but it isn't that simple.
Tucson, AZ
Right Now
64°
Partly Cloudy
- Humidity: 79%
- Feels Like: 64°
- Heat Index: 64°
- Wind: 6 mph
- Wind Chill: 64°
- UV Index: 0 Low
- Sunrise: 06:16:31 AM
- Sunset: 06:10:44 PM
- Dew Point: 57°
- Visibility: 10 mi
Today
Partly cloudy this evening followed by increasing clouds with showers developing after midnight. Low 59F. Winds SSE at 5 to 10 mph. Chance of rain 40%.
Tonight
Partly cloudy this evening followed by increasing clouds with showers developing after midnight. Low 59F. Winds SSE at 5 to 10 mph. Chance of rain 40%.
Tomorrow
A few clouds early, otherwise mostly sunny. High around 75F. Winds WSW at 5 to 10 mph.
Weather Alert
...FLOOD ADVISORY IN EFFECT UNTIL 10 PM MST THIS EVENING... * WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Eastern Pima County in southeastern Arizona... * WHEN...Until 1000 PM MST. * IMPACTS...Dangerous flows over low-water crossings. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 807 PM MST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 0.4 and 0.8 inches of rain have fallen. - Some locations that will experience flooding include... Tucson, Davis-Monthan Air Force Base, Tanque Verde and Catalina Foothills. - This includes the following Flash Flood Prone Locations... Harrison Rd at Pantano Wash, Agua Caliente Wash from Soldier Trl to Fort Lowell, Wentworth Rd at Tanque Verde Wash, Tanque Verde Loop Rd at Tanque Verde Wash, Escalante Rd at Atterbury Wash, Alamo Wash between Speedway and Grant, Freeman Rd between Broadway and Old Spanish Trail and Limberlost Rd from Soilder Trail to Homestead Ave. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. &&
Weather Alert
The National Weather Service in Tucson has issued a * Flash Flood Warning for... Northeastern Pima County in southeastern Arizona... South Central Pinal County in southeastern Arizona... * Until 1015 PM MST. * At 713 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. This is already falling on saturated grounds. Up to 1 inch of rain has fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Mainly rural areas of Northeastern Pima and South Central Pinal Counties. This includes the following highways... Route 79 between mile markers 97 and 109. Interstate 10 between mile markers 229 and 238. This includes the following Flash Flood Prone Locations... Suizo Rd at Cadillac Wash and Park Link Dr between I-10 and HWY 79. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. && FLASH FLOOD...RADAR INDICATED
Weather Alert
...FLOOD ADVISORY IN EFFECT UNTIL 1215 AM MST WEDNESDAY... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Northwestern Cochise County in southeastern Arizona... Southwestern Graham County in southeastern Arizona... East Central Pima County in southeastern Arizona... * WHEN...Until 1215 AM MST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry washes. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 619 PM MST, Doppler radar indicated heavy rain due to thunderstorms from earlier today. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 1.5 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Tucson, Sahuarita, Green Valley, Vail, Corona De Tucson, East Sahuarita, Saguaro National Park East, Summit, Rita Ranch, Mescal and Cascabel. - This includes the following highways... Interstate 19 between mile markers 39 and 48. Interstate 10 between mile markers 271 and 299. Route 83 between mile markers 47 and 58. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Weather Alert
...FLOOD WARNING IN EFFECT UNTIL 1030 PM MST THIS EVENING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...North Central Pima County in southeastern Arizona... * WHEN...Until 1030 PM MST Tuesday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 427 PM MST, Doppler radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 1 and 3 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Marana, Three Points, Avra Valley, Tucson Estates, Saguaro National Park West, Picture Rocks and Ryan AirField. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Weather Alert
...FLOOD WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Northeastern Pima County in southeastern Arizona... * WHEN...Until 1100 PM MST Tuesday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 400 PM MST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 1 and 4 inches of rain have fallen. - Additional rainfall amounts up to 0.1 inches are possible in the warned area. - Some locations that will experience flooding include... Flowing Wells, Mount Lemmon/Summerhaven, Sabino Canyon Recreation Area, Catalina Foothills and Seven Falls. - This includes the following highways... Route 77 near mile marker 72. Interstate 10 between mile markers 250 and 252. This includes the following Flash Flood Prone Locations... Camino De La Tierra at the Rillito River and Snyder Rd from Kolb Rd to Sabino Canyon Rd. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Weather Alert
...FLOOD WARNING IN EFFECT UNTIL 915 PM MST THIS EVENING... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Northwestern Cochise County in southeastern Arizona... Southwestern Graham County in southeastern Arizona... Northeastern Pima County in southeastern Arizona... Southeastern Pinal County in southeastern Arizona... * WHEN...Until 915 PM MST. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 318 PM MST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 1 and 4 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Catalina, Oro Valley, Marana, Oracle, Casas Adobes, Saddlebrooke, San Manuel, Saddlebrooke Ranch, Tortolita, Mount Lemmon/Summerhaven, Catalina State Park, Catalina Foothills, Saguaro National Park West, Picture Rocks, Campo Bonito, Biosphere 2, Oracle Junction, Dove Mountain and Redington. - This includes the following highways... Route 79 between mile markers 92 and 94. Route 77 between mile markers 73 and 101. Interstate 10 between mile markers 243 and 249. This includes the following Flash Flood Prone Locations... River Rd at San Pedro River, Silverbell Rd near Ina Rd, Overton Rd at Canada del Oro, Sunset Rd west of Camino de Oeste and E Wilds Rd at the Canada del Oro. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Weather Alert
...FLOOD WARNING IN EFFECT UNTIL 315 AM MST WEDNESDAY... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Southwestern Graham County in southeastern Arizona... Northeastern Pima County in southeastern Arizona... East Central Pinal County in southeastern Arizona... * WHEN...Until 315 AM MST Wednesday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 316 PM MST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is already occurring in the warned area. Between 1 and 3 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are possible in the warned area. - Some locations that will experience flooding include... Peridot, Aravaipa Canyon Wilderness, Bylas, Klondyke, Calva and San Carlos Reservoir. - This includes Route 70 between mile markers 272 and 297. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Weather Alert
...FLOOD WARNING IN EFFECT UNTIL 315 AM MST WEDNESDAY... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...North Central Pima County in southeastern Arizona... Eastern Pinal County in southeastern Arizona... * WHEN...Until 315 AM MST Wednesday. * IMPACTS...Low-water crossings are inundated with water and may not be passable. Expect many areas of slow moving or standing water. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS... - At 316 PM MST, gauge reports indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Up to 3 inches of rain have fallen. - Some locations that will experience flooding include... Marana, Avra Valley, Kearny, Dudleyville, Pinal Airpark, Picture Rocks, Red Rock, Dove Mountain, Kelvin and San Carlos Reservoir. - This includes the following highways... Route 79 between mile markers 95 and 118. Route 77 between mile markers 122 and 134. Route 177 between mile markers 139 and 156. Interstate 10 between mile markers 224 and 242. This includes the following Flash Flood Prone Locations... Suizo Rd at Cadillac Wash, Sasco Rd at Santa Cruz Wash, Park Link Dr between I-10 and HWY 79 and Twin Peaks Rd between Sanders and Sandario. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Weather Alert
...FLOOD ADVISORY IN EFFECT UNTIL 1030 PM MST THIS EVENING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...South Central Pima County in southeastern Arizona... * WHEN...Until 1030 PM MST Tuesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 234 PM MST, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in Vamori Wash at Santa Cruz Village. - Vamori Wash at Santa Cruz Village is the most likely place to experience minor flooding. - Some locations that will experience flooding include... Topawa, San Miguel, Vamori, South Komelik, Cowlic, Choulic, Newfield, Coldfields, Santa Cruz, Kupk and Hashan Chuchg. - This includes the following Flash Flood Prone Locations... Indian Route 19 south of Topawa and Indian Route 20 at Cowlic. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. &&
Weather Alert
...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * WHEN...Through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Deep tropical moisture will combine with an approaching upper low and trough, resulting in areas of heavy rainfall. Rainfall totals of 1 to 2 inches are possible across most valley locations in Southeast Arizona, with 2 to 4 inches possible across the Sky Islands and White Mountains. Locally heavier amounts are possible under the stronger thunderstorms, especially for the White Mountains. - Http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
Next 12 Hours
Time
Temp
Wind
Precip
9 PM
64°
6 mph
15%
9 PM
64°
Wind: SSW @ 6 mph
Precip: 15% Chance
Humidity: 79%
Wind Chill: 64°
Heat Index: 64°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 57°
10 PM
63°
6 mph
15%
10 PM
63°
Wind: SSE @ 6 mph
Precip: 15% Chance
Humidity: 78%
Wind Chill: 63°
Heat Index: 63°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 56°
11 PM
63°
7 mph
15%
11 PM
63°
Wind: SSE @ 7 mph
Precip: 15% Chance
Humidity: 75%
Wind Chill: 63°
Heat Index: 63°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
12 AM
63°
7 mph
8%
12 AM
63°
Wind: SE @ 7 mph
Precip: 8% Chance
Humidity: 74%
Wind Chill: 63°
Heat Index: 63°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
1 AM
63°
6 mph
10%
1 AM
63°
Wind: SSE @ 6 mph
Precip: 10% Chance
Humidity: 75%
Wind Chill: 63°
Heat Index: 63°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
2 AM
63°
6 mph
19%
2 AM
63°
Wind: SSE @ 6 mph
Precip: 19% Chance
Humidity: 76%
Wind Chill: 63°
Heat Index: 63°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
3 AM
62°
7 mph
20%
3 AM
62°
Wind: SSE @ 7 mph
Precip: 20% Chance
Humidity: 76%
Wind Chill: 62°
Heat Index: 62°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
4 AM
62°
8 mph
36%
4 AM
62°
Wind: S @ 8 mph
Precip: 36% Chance
Humidity: 79%
Wind Chill: 61°
Heat Index: 62°
UV Index: 0 Low
Visibility: 7 mi
Dew Point: 55°
5 AM
61°
7 mph
19%
5 AM
61°
Wind: SSE @ 7 mph
Precip: 19% Chance
Humidity: 79%
Wind Chill: 61°
Heat Index: 61°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
6 AM
60°
7 mph
18%
6 AM
60°
Wind: SSE @ 7 mph
Precip: 18% Chance
Humidity: 81%
Wind Chill: 59°
Heat Index: 60°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 54°
7 AM
61°
6 mph
13%
7 AM
61°
Wind: SE @ 6 mph
Precip: 13% Chance
Humidity: 81%
Wind Chill: 60°
Heat Index: 61°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 55°
8 AM
63°
7 mph
9%
8 AM
63°
Wind: SSE @ 7 mph
Precip: 9% Chance
Humidity: 75%
Wind Chill: 63°
Heat Index: 63°
UV Index: 1 Low
Visibility: 10 mi
Dew Point: 55°
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- Griffin Salkowski
If the forecast holds, Tucson could end the year with above-normal monsoon rainfall.
- Norma Coile
If longtime Tucsonans can seem rather blasé about weather scenarios like the one in our regional news this week, 1997 may well be the reason.
- Arizona Daily Star
A storm swept across metro Tucson Monday evening, prompting several rescues, a power outage and reports of toppled power lines.
- Shi En Kim Arizona Republic
On average, Arizona sees as many as 600,000 lightning strikes every year, most of them during the monsoon. Storm chasers are out to capture the chaos.
- Ignacio Calderon and Doyle Rice USA Today
The United States’ scorching summer of 2026 was a record-breaker, scientists from the National Oceanic and Atmospheric Administration announced Sept. 9.
- Tevian Whitehurst Arizona Republic
In Phoenix, 27 nights had lows at or warmer than 90 degrees, 14 of which broke or tied daily records.
Flash Flood Warning in Effect for Central Pima County Until 4:30 PM MST
Severe Thunderstorm Warning: High Winds and Hail Expected Until 10:45 AM MST
Flash Flood Warning in Effect Until 2:30 PM MST for Parts of Southeastern Arizona
-
Brandi D. Addison
USA Today
A stronger-than-normal polar vortex is taking shape over the North Pole. That might sound like a recipe for a brutally cold winter, but it isn't that simple.
- Griffin Salkowski
If the forecast holds, Tucson could end the year with above-normal monsoon rainfall.
- Norma Coile
If longtime Tucsonans can seem rather blasé about weather scenarios like the one in our regional news this week, 1997 may well be the reason.