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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

A Few Clouds and Breezy

63°F

17°C

Humidity 49%
Wind Speed SW 23 G 29 mph
Barometer 29.77 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 3 May 12:45 pm CDT
Extended Forecast for

Fort Atkinson WI

Flood Warning May 3, 01:17pm until May 3, 07:00pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning May 3, 01:17pm until May 3, 07:00pm

    NOW until 7:00pm Sun

    Flood Warning

  • This Afternoon

    High: 68 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 45. Southwest wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 76. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 76 °F

    Breezy. Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 44. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 40%.

    Low: 44 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers after 7am. Mostly cloudy, with a high near 56. Northwest wind 5 to 10 mph.

    High: 56 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 7am. Otherwise, partly sunny, with a high near 55. Northwest wind 5 to 10 mph.

    High: 55 °F

    Areas Frost
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

Detailed Forecast

This Afternoon
Sunny, with a high near 68. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tonight
Mostly clear, with a low around 45. Southwest wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 76. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 44. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 40%.
Tuesday
A 20 percent chance of showers after 7am. Mostly cloudy, with a high near 56. Northwest wind 5 to 10 mph.
Tuesday Night
Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 55. Northwest wind 5 to 10 mph.
Wednesday Night
Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Areas of frost before 7am. Otherwise, mostly sunny, with a high near 59.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 39.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 67.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Atkinson WI
 42.92°N 88.84°W (Elev. 797 ft)
Last Update:
12:46 pm CDT May 3, 2026
Forecast Valid:
1pm CDT May 3, 2026-6pm CDT May 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