Janesville 7-day weather forecast

Written by:
December 29, 2025
ESOlex // Shutterstock

Janesville 7-day weather forecast

Stacker created the forecast for Janesville, Wisconsin using data from OpenWeather. This week's high is 45 °F on Tuesday, while the low is 1 °F on Sunday. There is expected to be 1 sunny day and snow on 3 days this week.

There are currently no weather alerts.

Monday, January 12

- High of 40 °F, low of 26 °F (66% humidity)
- Mostly cloudy with a 0% chance of rain
- Moderate breeze (16 mph wind)
- Sunrise at 7:24 AM, sunset at 4:43 PM
1 / 6
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Tuesday, January 13

- High of 45 °F, low of 33 °F (69% humidity)
- Partly sunny with a 0% chance of rain
- Fresh breeze (19 mph wind)
- Sunrise at 7:24 AM, sunset at 4:44 PM
2 / 6
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Wednesday, January 14

- High of 36 °F, low of 15 °F (60% humidity)
- Overcast with a 20% chance of snow (0 mm of snow)
- Fresh breeze (23 mph wind)
- Sunrise at 7:23 AM, sunset at 4:45 PM
3 / 6
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Thursday, January 15

- High of 23 °F, low of 14 °F (46% humidity)
- Sunny with a 0% chance of snow
- Moderate breeze (18 mph wind)
- Sunrise at 7:23 AM, sunset at 4:47 PM
4 / 6
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Friday, January 16

- High of 33 °F, low of 20 °F (75% humidity)
- Overcast with a 100% chance of snow (1 mm of snow)
- Moderate breeze (13 mph wind)
- Sunrise at 7:23 AM, sunset at 4:48 PM
5 / 6
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Saturday, January 17

- High of 21 °F, low of 4 °F (77% humidity)
- Overcast with a 100% chance of snow (3 mm of snow)
- Moderate breeze (17 mph wind)
- Sunrise at 7:22 AM, sunset at 4:49 PM
6 / 6
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Sunday, January 18

- High of 14 °F, low of 1 °F (58% humidity)
- Mostly cloudy with a 0% chance of snow
- Moderate breeze (14 mph wind)
- Sunrise at 7:21 AM, sunset at 4:50 PM
- New moon

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