Hourly Weather Forecast - Janesville, WI

12 AM
21°F
0%
17mph
WNW
Clear
Humidity
56%
Feels like
7°F
Dew Point
8°F
1 AM
20°F
0%
16mph
WNW
Clear
Humidity
55%
Feels like
6°F
Dew Point
7°F
2 AM
19°F
0%
15mph
WNW
Clear
Humidity
56%
Feels like
5°F
Dew Point
6°F
3 AM
17°F
0%
13mph
WNW
Clear
Humidity
58%
Feels like
3°F
Dew Point
5°F
4 AM
16°F
0%
13mph
WNW
Clear
Humidity
59%
Feels like
2°F
Dew Point
4°F
5 AM
15°F
0%
12mph
WNW
Clear
Humidity
60%
Feels like
1°F
Dew Point
3°F
6 AM
14°F
0%
11mph
WNW
Clear
Humidity
61%
Feels like
0°F
Dew Point
3°F
7 AM
13°F
0%
10mph
WNW
Clear
Humidity
60%
Feels like
1°F
Dew Point
2°F
7:22 AM
8 AM
15°F
0%
9mph
NW
Sunny
Humidity
57%
Feels like
3°F
Dew Point
2°F
9 AM
16°F
0%
9mph
NW
Sunny
Humidity
53%
Feels like
5°F
Dew Point
2°F
10 AM
18°F
0%
8mph
NW
Sunny
Humidity
49%
Feels like
8°F
Dew Point
2°F
11 AM
20°F
0%
7mph
WNW
Sunny
Humidity
46%
Feels like
11°F
Dew Point
3°F
12 PM
22°F
0%
7mph
WNW
Sunny
Humidity
43%
Feels like
14°F
Dew Point
3°F
1 PM
24°F
0%
7mph
WNW
Sunny
Humidity
42%
Feels like
16°F
Dew Point
4°F
2 PM
25°F
0%
6mph
WNW
Sunny
Humidity
42%
Feels like
17°F
Dew Point
5°F
3 PM
25°F
0%
6mph
WNW
Sunny
Humidity
43%
Feels like
18°F
Dew Point
6°F
4 PM
24°F
0%
5mph
W
Sunny
Humidity
46%
Feels like
18°F
Dew Point
6°F
4:25 PM
5 PM
24°F
0%
5mph
SW
Mostly Clear
Humidity
49%
Feels like
17°F
Dew Point
7°F
6 PM
23°F
10%
5mph
S
Mostly Clear
Humidity
53%
Feels like
16°F
Dew Point
8°F
7 PM
22°F
20%
6mph
S
Partly Cloudy
Humidity
56%
Feels like
15°F
Dew Point
9°F
8 PM
22°F
20%
6mph
S
Mostly Cloudy
Humidity
58%
Feels like
14°F
Dew Point
10°F
9 PM
22°F
30%
7mph
SSE
30% Chance of Flurries
Humidity
59%
Feels like
13°F
Dew Point
10°F
10 PM
22°F
20%
8mph
SSE
Cloudy
Humidity
59%
Feels like
14°F
Dew Point
11°F
11 PM
24°F
20%
8mph
SSE
Cloudy
Humidity
59%
Feels like
15°F
Dew Point
11°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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