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.

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, 78.8
Wind 1 MPH North, 34% humidity
UV index 0, visibility 10.0 miles
Precip. last hour 0.00 in, today 0.03 in
No lightning strikes today

Today

12 am: Clear, 76.2
Wind 8 MPH ESE, 0% chance precip.
36% humidity, UV index 0
1 am: Clear, 75.8
Wind 8 MPH ESE, 0% chance precip.
37% humidity, UV index 0
2 am: Clear, 75.1
Wind 9 MPH ESE, 0% chance precip.
39% humidity, UV index 0
3 am: Clear, 75.0
Wind 10 MPH ESE, 0% chance precip.
42% humidity, UV index 0
4 am: Clear, 74.4
Wind 10 MPH ESE, 0% chance precip.
43% humidity, UV index 0
5 am: Clear, 73.7
Wind 10 MPH ESE, 0% chance precip.
45% humidity, UV index 0
6 am: Clear, 72.4
Wind 10 MPH ESE, 0% chance precip.
47% humidity, UV index 0
7 am: Clear, 72.2
Wind 9 MPH ESE, 0% chance precip.
48% humidity, UV index 0
8 am: Clear, 75.5
Wind 10 MPH SE, 0% chance precip.
46% humidity, UV index 1
9 am: Clear, 80.5
Wind 12 MPH SE, 0% chance precip.
40% humidity, UV index 3
10 am: Clear, 84.6
Wind 10 MPH SE, 0% chance precip.
34% humidity, UV index 5
11 am: Clear, 87.9
Wind 9 MPH SE, 0% chance precip.
28% humidity, UV index 7
12 pm: Clear, 90.5
Wind 7 MPH SE, 0% chance precip.
24% humidity, UV index 8
1 pm: Clear, 92.9
Wind 5 MPH SE, 0% chance precip.
20% humidity, UV index 8
2 pm: Clear, 94.2
Wind 4 MPH SE, 0% chance precip.
19% humidity, UV index 6
3 pm: Clear, 94.8
Wind 4 MPH NW, 0% chance precip.
18% humidity, UV index 4
4 pm: Clear, 94.3
Wind 5 MPH NNW, 0% chance precip.
18% humidity, UV index 2
5 pm: Clear, 92.9
Wind 7 MPH NNW, 0% chance precip.
19% humidity, UV index 1
6 pm: Clear, 90.4
Wind 6 MPH NW, 0% chance precip.
23% humidity, UV index 0
7 pm: Clear, 87.3
Wind 5 MPH WNW, 0% chance precip.
27% humidity, UV index 0
8 pm: Clear, 84.4
Wind 5 MPH SSW, 0% chance precip.
32% humidity, UV index 0
9 pm: Clear, 81.8
Wind 5 MPH S, 0% chance precip.
37% humidity, UV index 0
10 pm: Clear, 79.5
Wind 6 MPH S, 0% chance precip.
40% humidity, UV index 0
11 pm: Clear, 77.7
Wind 6 MPH SSE, 0% chance precip.
42% humidity, UV index 0

Monday

12 am: Clear, 76.3
Wind 6 MPH SSE, 0% chance precip.
46% humidity, UV index 0
1 am: Clear, 75.4
Wind 5 MPH SSE, 0% chance precip.
49% humidity, UV index 0
2 am: Clear, 74.6
Wind 6 MPH SE, 1% chance precip.
52% humidity, UV index 0
3 am: Clear, 73.9
Wind 6 MPH SE, 1% chance precip.
54% humidity, UV index 0
4 am: Clear, 73.2
Wind 6 MPH SE, 1% chance precip.
56% humidity, UV index 0
5 am: Clear, 72.8
Wind 5 MPH SSE, 1% chance precip.
58% humidity, UV index 0
6 am: Partly Cloudy, 72.1
Wind 5 MPH SE, 1% chance precip.
61% humidity, UV index 0
7 am: Clear, 72.2
Wind 5 MPH SE, 1% chance precip.
63% humidity, UV index 0
8 am: Clear, 75.8
Wind 6 MPH SE, 0% chance precip.
58% humidity, UV index 1
9 am: Clear, 79.8
Wind 4 MPH SSE, 0% chance precip.
51% humidity, UV index 3
10 am: Clear, 83.5
Wind 2 MPH S, 0% chance precip.
45% humidity, UV index 5
11 am: Clear, 86.3
Wind 3 MPH WSW, 0% chance precip.
39% humidity, UV index 7