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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

28°F

-2°C

Humidity 93%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 5:45 am CDT
Extended Forecast for

5 Miles SW Fort Atkinson WI

Flood Warning until further notice
Click here for hazard details and duration
Flood Warning until further notice
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • Today

    High: 53 °F

    Frost then
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. South wind around 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. West wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Southeast wind around 5 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 59. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers

Detailed Forecast

Today
Widespread frost before 9am. Otherwise, sunny, with a high near 53. Light south wind increasing to 5 to 10 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 43. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 43. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 72. Northeast wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. Southeast wind around 5 mph.
Thursday
Partly sunny, with a high near 78. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 59. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Friday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Fort Atkinson WI
 42.88°N 88.9°W (Elev. 814 ft)
Last Update:
6:16 am CDT Apr 20, 2026
Forecast Valid:
7am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
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