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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

79°F

26°C

Humidity 79%
Wind Speed E 9 mph
Barometer 30.08 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Aug 1:45 pm CDT
Extended Forecast for

Fort Atkinson WI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 77. East wind around 10 mph.

    High: 77 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 65. East wind 5 to 10 mph.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 85. South wind 5 to 10 mph.

    High: 85 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    T-storms
    Likely then
    Showers
    Likely

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 82 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62. North wind around 5 mph.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76. North wind 5 to 10 mph.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 77. East wind around 10 mph.
Tonight
A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 65. East wind 5 to 10 mph.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 85. South wind 5 to 10 mph.
Monday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 62. North wind around 5 mph.
Wednesday
Partly sunny, with a high near 76. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Atkinson WI
 42.94°N 88.84°W (Elev. 850 ft)
Last Update:
1:28 pm CDT Aug 17, 2025
Forecast Valid:
1pm CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
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