Janesville 7-day weather forecast

Written by:
December 22, 2025
ESOlex // Shutterstock

Janesville 7-day weather forecast

Stacker created the forecast for Janesville, Wisconsin using data from OpenWeather. This week's high is 55 °F on Thursday, while the low is 21 °F on Sunday. There is expected to be 1 sunny day, snow on 1 day, and 2 days of rain this week.

There are currently no weather alerts.

Monday, December 22

- High of 34 °F, low of 30 °F (56% humidity)
- Overcast with a 20% chance of snow (0 mm of snow)
- Moderate breeze (13 mph wind)
- Sunrise at 7:23 AM, sunset at 4:25 PM
1 / 6
Cari Rubin Photography // Shutterstock

Tuesday, December 23

- High of 41 °F, low of 30 °F (79% humidity)
- Overcast with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 7:24 AM, sunset at 4:26 PM
2 / 6
Alex Stemmer // Shutterstock

Wednesday, December 24

- High of 40 °F, low of 29 °F (76% humidity)
- Overcast with a 75% chance of rain (0 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 7:24 AM, sunset at 4:26 PM
3 / 6
Deborah Kolb // Shutterstock

Thursday, December 25

- High of 55 °F, low of 38 °F (99% humidity)
- Overcast with a 56% chance of rain (0 mm of rain)
- Moderate breeze (13 mph wind)
- Sunrise at 7:24 AM, sunset at 4:27 PM
4 / 6
Leonid Ikan // Shutterstock

Friday, December 26

- High of 45 °F, low of 29 °F (59% humidity)
- Partly cloudy with a 0% chance of rain
- Fresh breeze (19 mph wind)
- Sunrise at 7:25 AM, sunset at 4:28 PM
5 / 6
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Saturday, December 27

- High of 42 °F, low of 30 °F (66% humidity)
- Overcast with a 0% chance of rain
- Moderate breeze (14 mph wind)
- Sunrise at 7:25 AM, sunset at 4:28 PM
- First quarter moon
6 / 6
Leonid Ikan // Shutterstock

Sunday, December 28

- High of 36 °F, low of 21 °F (39% humidity)
- Sunny with a 0% chance of rain
- Fresh breeze (19 mph wind)
- Sunrise at 7:25 AM, sunset at 4:29 PM

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