A couple of men brave the snow to walk around in Summherhaven in the Santa Catalina Mountains on Tuesday, April 9, 2013, in Tucson, Ariz. The National Weather Service in Tucson is looking for volunteer observers to record and report snowfall on Mount Lemmon this winter.

Mike Christy / Arizona Daily Star

Get ready for temperatures to plummet, as widespread cold conditions are expected for the end of the work week.

A Hard Freeze Watch for low temperatures below 28 degrees and a Freeze Watch for lows around 32 degrees are in effect late Thursday night into Friday morning, which would bring the first freeze of the season to the metro area.

High: 70

Low: 44

Currently

Clear, 35.3
Wind 0 MPH WNW, 60% humidity
UV index 0, visibility 10.0 miles
No precipitation today
No lightning strikes today

Today

1 am: Clear, 35
Wind 6 MPH ESE, 0% chance precip.
50% humidity, UV index 0
2 am: Clear, 35
Wind 6 MPH ESE, 0% chance precip.
50% humidity, UV index 0
3 am: Clear, 34
Wind 6 MPH ESE, 0% chance precip.
50% humidity, UV index 0
4 am: Partly Cloudy, 35
Wind 4 MPH SE, 0% chance precip.
46% humidity, UV index 0
5 am: Partly Cloudy, 35
Wind 5 MPH SE, 0% chance precip.
46% humidity, UV index 0
6 am: Partly Cloudy, 35
Wind 5 MPH SE, 0% chance precip.
45% humidity, UV index 0
7 am: Partly Cloudy, 35
Wind 5 MPH SE, 0% chance precip.
46% humidity, UV index 0
8 am: Partly Cloudy, 35
Wind 5 MPH SE, 0% chance precip.
45% humidity, UV index 0
9 am: Partly Cloudy, 39
Wind 5 MPH SE, 0% chance precip.
39% humidity, UV index 1
10 am: Mostly Cloudy, 45
Wind 4 MPH SE, 0% chance precip.
32% humidity, UV index 1
11 am: Mostly Cloudy, 50
Wind 3 MPH ESE, 0% chance precip.
26% humidity, UV index 2
12 pm: Mostly Cloudy, 53
Wind 3 MPH NNW, 0% chance precip.
22% humidity, UV index 3
1 pm: Mostly Cloudy, 56
Wind 4 MPH NW, 0% chance precip.
18% humidity, UV index 3
2 pm: Mostly Cloudy, 58
Wind 6 MPH NNW, 0% chance precip.
16% humidity, UV index 2
3 pm: Mostly Cloudy, 59
Wind 5 MPH NW, 0% chance precip.
15% humidity, UV index 2
4 pm: Mostly Cloudy, 59
Wind 7 MPH NW, 0% chance precip.
14% humidity, UV index 1
5 pm: Partly Cloudy, 58
Wind 7 MPH NW, 0% chance precip.
16% humidity, UV index 0
6 pm: Partly Cloudy, 55
Wind 5 MPH NW, 0% chance precip.
22% humidity, UV index 0
7 pm: Partly Cloudy, 52
Wind 3 MPH NW, 0% chance precip.
25% humidity, UV index 0
8 pm: Clear, 50
Wind 4 MPH SSE, 0% chance precip.
27% humidity, UV index 0
9 pm: Clear, 47
Wind 5 MPH SSE, 0% chance precip.
29% humidity, UV index 0
10 pm: Clear, 45
Wind 4 MPH SE, 0% chance precip.
32% humidity, UV index 0
11 pm: Clear, 43
Wind 6 MPH SE, 0% chance precip.
34% humidity, UV index 0

Tuesday

12 am: Clear, 42
Wind 5 MPH SE, 0% chance precip.
33% humidity, UV index 0
1 am: Clear, 41
Wind 6 MPH SE, 0% chance precip.
33% humidity, UV index 0
2 am: Clear, 40
Wind 6 MPH SE, 0% chance precip.
33% humidity, UV index 0
3 am: Clear, 40
Wind 6 MPH ESE, 0% chance precip.
32% humidity, UV index 0
4 am: Clear, 40
Wind 6 MPH ESE, 0% chance precip.
31% humidity, UV index 0
5 am: Clear, 40
Wind 6 MPH ESE, 0% chance precip.
29% humidity, UV index 0
6 am: Clear, 40
Wind 6 MPH ESE, 0% chance precip.
28% humidity, UV index 0
7 am: Clear, 40
Wind 6 MPH ESE, 0% chance precip.
28% humidity, UV index 0
8 am: Clear, 41
Wind 7 MPH ESE, 0% chance precip.
27% humidity, UV index 0
9 am: Clear, 46
Wind 8 MPH ESE, 0% chance precip.
23% humidity, UV index 1
10 am: Clear, 52
Wind 8 MPH E, 0% chance precip.
18% humidity, UV index 2
11 am: Clear, 58
Wind 9 MPH E, 0% chance precip.
14% humidity, UV index 3
12 pm: Clear, 61
Wind 10 MPH E, 0% chance precip.
12% humidity, UV index 4