National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

63°F

17°C

Humidity 64%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 26 Aug 7:45 pm CDT
Extended Forecast for

4 Miles NW Fort Atkinson WI

  • Tonight

    Tonight: Mostly clear, with a low around 50. West wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 74. Southwest wind 5 to 10 mph.

    High: 74 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph.

    Low: 58 °F

    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 71. West wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Northeast wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Northeast wind around 5 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. Northeast wind around 5 mph becoming calm.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Calm wind becoming east around 5 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. West wind around 5 mph becoming calm.
Wednesday
Increasing clouds, with a high near 74. Southwest wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph.
Thursday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 71. West wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 46. Northeast wind around 5 mph.
Friday
Sunny, with a high near 69. Northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 47. Northeast wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 71. Calm wind becoming east around 5 mph.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 52.
Labor Day
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Fort Atkinson WI
 42.97°N 88.9°W (Elev. 906 ft)
Last Update:
5:38 pm CDT Aug 26, 2025
Forecast Valid:
8pm CDT Aug 26, 2025-6pm CDT Sep 2, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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