Janesville 7-day weather forecast

Written by:
August 4, 2025
ESOlex // Shutterstock

Janesville 7-day weather forecast

Stacker created the forecast for Janesville, Wisconsin using data from OpenWeather. This week's high is 85 °F on Friday, while the low is 57 °F on Tuesday. There are expected to be 4 sunny days and rain on 1 day this week.

NWS Milwaukee/Sullivan WI has issued an air quality alert until Monday at 12:00 PM.

Monday, August 4

- High of 78 °F, low of 58 °F (61% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:51 AM, sunset at 8:13 PM
1 / 6
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Tuesday, August 5

- High of 79 °F, low of 57 °F (57% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:52 AM, sunset at 8:11 PM
2 / 6
supergenijalac // Shutterstock

Wednesday, August 6

- High of 81 °F, low of 61 °F (66% humidity)
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:53 AM, sunset at 8:10 PM
3 / 6
Andrzej Kubik // Shutterstock

Thursday, August 7

- High of 84 °F, low of 65 °F (72% humidity)
- Mostly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:54 AM, sunset at 8:09 PM
4 / 6
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Friday, August 8

- High of 85 °F, low of 70 °F (66% humidity)
- Fair with a 0% chance of rain
- Moderate breeze (14 mph wind)
- Sunrise at 5:55 AM, sunset at 8:08 PM
5 / 6
afoto6267 // Shutterstock

Saturday, August 9

- High of 84 °F, low of 69 °F (69% humidity)
- Sunny with a 0% chance of rain
- Moderate breeze (13 mph wind)
- Sunrise at 5:56 AM, sunset at 8:06 PM
- Full moon
6 / 6
Andrew Lever // Shutterstock

Sunday, August 10

- High of 80 °F, low of 68 °F (72% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 5:57 AM, sunset at 8:05 PM

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