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Weather Tomorrow in Janesville, WI

Thursday, April 9, 2026

59°Low 44°FColdHot
Clear

Precip chance

89%

Wind

0-15 mph

Humidity

65%

Feels like

57–46°F

Rain forecast

Rain likely starts around 5 AM and may continue until 4 AM. Peak chance: 89% around 5 AM.

Data source: National Weather Service (NOAA) · Updated just now

Tomorrow by Hour

44°Temperature trend59°
TimeTempConditionRain %Wind
5 AM57°FShowers And Thunderstorms
89%
15 mph SW
6 AM55°FRain Showers Likely
55%
10 mph W
7 AM53°FRain Showers Likely
61%
10 mph W
8 AM51°FChance Rain Showers
28%
10 mph SW
9 AM49°FMostly Cloudy
7%
5 mph SW
10 AM47°FPartly Cloudy
1%
5 mph SW
11 AM46°FMostly Sunny
1%
5 mph W
12 PM45°FMostly Sunny
1%
5 mph W
1 PM44°FSunny
1%
5 mph W
2 PM47°FSunny
1%
10 mph W
3 PM50°FSunny
1%
10 mph W
4 PM53°FSunny
1%
10 mph W
5 PM55°FSunny
1%
10 mph W
6 PM57°FSunny
5%
10 mph W
7 PM58°FMostly Sunny
5%
10 mph W
8 PM59°FMostly Sunny
5%
10 mph W
9 PM59°FPartly Sunny
5%
10 mph W
10 PM59°FMostly Cloudy
5%
5 mph W
11 PM58°FMostly Cloudy
5%
5 mph W
12 AM57°FRain Showers
76%
5 mph NW
1 AM55°FRain Showers
76%
5 mph NW
2 AM52°FRain Showers
76%
0 mph
3 AM50°FRain Showers
76%
0 mph
4 AM48°FRain Showers
76%
5 mph NE

Precipitation Timeline

100%
50%
89%
5a11a5p11p
<20%20-50%50-70%>70%

What to Wear Tomorrow

Mild temperatures — a light layer should do

Clothing

  • T-shirt or long-sleeve
  • Light jacket (for morning/evening)

Footwear

Water-resistant shoes

Accessories

  • Umbrella

Conditions

High: 59°F

Low: 44°F

Wind: 0-15 mph

Rain: 89%

Rain expected around 5 AM — carry an umbrella.

Best Time to Be Outside Tomorrow

9 PM – 10 PM85

Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)

5a11a5p11p

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Frequently Asked Questions

What is the weather forecast for tomorrow in Janesville, WI?
Tomorrow in Janesville: High of 59°F, Low of 44°F. Clear with 89% chance of precipitation. Wind 0-15 mph.
Will it rain tomorrow in Janesville?
Rain likely starts around 5 AM and may continue until 4 AM. Peak chance: 89% around 5 AM.
What should I wear tomorrow in Janesville?
With a high of 59°F and low of 44°F, check our "What to Wear" section above for specific clothing recommendations based on temperature, wind, and precipitation.
How accurate is this forecast?
Our forecasts come directly from the National Weather Service (NOAA), which provides some of the most accurate weather predictions available. Tomorrow forecasts are generally 80-90% accurate, with accuracy decreasing the further out you look. Data is refreshed every 30 minutes.