Janesville 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Janesville 7-day weather forecast

Stacker created the forecast for Janesville, Wisconsin using data from OpenWeather. This week's high is 82 °F on Sunday, while the low is 44 °F on Monday. There are expected to be 3 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 72 °F, low of 44 °F (62% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:28 AM, sunset at 7:18 PM
1 / 6
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Tuesday, September 9

- High of 72 °F, low of 49 °F (58% humidity)
- Mostly sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:29 AM, sunset at 7:17 PM
2 / 6
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Wednesday, September 10

- High of 74 °F, low of 57 °F (61% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:30 AM, sunset at 7:15 PM
3 / 6
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Thursday, September 11

- High of 78 °F, low of 56 °F (62% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:31 AM, sunset at 7:13 PM
4 / 6
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Friday, September 12

- High of 80 °F, low of 56 °F (57% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:33 AM, sunset at 7:11 PM
5 / 6
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Saturday, September 13

- High of 78 °F, low of 65 °F (80% humidity)
- Overcast with a 100% chance of rain (14 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:34 AM, sunset at 7:10 PM
6 / 6
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Sunday, September 14

- High of 82 °F, low of 63 °F (68% humidity)
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:35 AM, sunset at 7:08 PM
- Last quarter moon

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