Hourly Weather Forecast - Janesville, WI

12 AM
34°F
10%
7mph
ESE
Mostly Cloudy
Humidity
92%
Feels like
28°F
Dew Point
32°F
1 AM
35°F
10%
7mph
ESE
Mostly Cloudy
Humidity
91%
Feels like
29°F
Dew Point
32°F
2 AM
35°F
10%
6mph
SE
Cloudy
Humidity
90%
Feels like
29°F
Dew Point
32°F
3 AM
35°F
10%
6mph
SE
Cloudy
Humidity
91%
Feels like
30°F
Dew Point
33°F
4 AM
35°F
30%
6mph
SE
30% Chance of Flurries
Humidity
92%
Feels like
30°F
Dew Point
33°F
5 AM
35°F
30%
6mph
SSE
30% Chance of Flurries
Humidity
92%
Feels like
30°F
Dew Point
33°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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