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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

3°F

-16°C

Humidity 78%
Wind Speed NW 7 mph
Barometer 30.11 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 17 Mar 7:45 am CDT
Extended Forecast for

5 Miles WSW Fort Atkinson WI

  • Today

    Today: Increasing clouds, with a high near 21. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 21 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Snow, mainly between 11pm and 5am. Low around 17. South wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 17 °F

    Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 40. Southwest wind around 10 mph.

    High: 40 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Partly sunny, with a high near 45. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. North wind around 5 mph becoming calm.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 51. Southwest wind 5 to 10 mph.

    High: 51 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. North wind around 5 mph becoming south after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 21. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Tonight
Snow, mainly between 11pm and 5am. Low around 17. South wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Wednesday
Mostly cloudy, with a high near 40. Southwest wind around 10 mph.
Wednesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 45. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 32. North wind around 5 mph becoming calm.
Friday
Mostly cloudy, with a high near 51. Southwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 34. North wind around 5 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 52.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Fort Atkinson WI
 42.88°N 88.93°W (Elev. 774 ft)
Last Update:
8:43 am CDT Mar 17, 2026
Forecast Valid:
8am CDT Mar 17, 2026-6pm CDT Mar 23, 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