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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

73°F

23°C

Humidity 94%
Wind Speed SE 8 mph
Barometer 29.95 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 3 Sep 11:45 am CDT
Extended Forecast for

4 Miles WSW Fort Atkinson WI

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 88. South wind around 5 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 69. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 88. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. East wind around 5 mph.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Northeast wind around 5 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. East wind 5 to 10 mph.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. East wind around 5 mph.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. East wind around 5 mph becoming calm after midnight.

    Low: 62 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 88. South wind around 5 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 69. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and thunderstorms likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 88. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. East wind around 5 mph.
Saturday
Mostly sunny, with a high near 83. Northeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 64. East wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 81. East wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 62. East wind around 5 mph becoming calm after midnight.
Labor Day
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 83.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Fort Atkinson WI
 42.9°N 88.93°W (Elev. 774 ft)
Last Update:
11:32 am CDT Sep 3, 2026
Forecast Valid:
12pm CDT Sep 3, 2026-6pm CDT Sep 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation