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.

Fair

9°F

-13°C

Humidity 92%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 4 Feb 11:55 pm CST
Extended Forecast for

5 Miles SW Fort Atkinson WI

  • Overnight

    Overnight: A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a temperature rising to around 16 by 5am. Calm wind becoming southwest around 5 mph.

    Low: 10 °F⇑

    Chance Snow

  • Thursday

    Thursday: Snow likely, mainly before 10am. Cloudy, with a high near 32. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Snow Likely
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 25. West wind 5 to 10 mph.

    Low: 25 °F

    Cloudy then
    Chance Snow

  • Friday

    Friday: A 20 percent chance of snow before 8am. Mostly cloudy, with a high near 36. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 36 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly clear, with a low around 4. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 4 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 22. Calm wind becoming south around 5 mph in the afternoon.

    High: 22 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16. South wind around 5 mph.

    Low: 16 °F

    Slight Chance
    Snow then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 33. South wind around 5 mph.

    High: 33 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a temperature rising to around 16 by 5am. Calm wind becoming southwest around 5 mph.
Thursday
Snow likely, mainly before 10am. Cloudy, with a high near 32. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 25. West wind 5 to 10 mph.
Friday
A 20 percent chance of snow before 8am. Mostly cloudy, with a high near 36. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 4. North wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
Increasing clouds, with a high near 22. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16. South wind around 5 mph.
Sunday
Mostly cloudy, with a high near 33. South wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Partly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 27.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 38.
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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:
11:27 pm CST Feb 4, 2026
Forecast Valid:
12am CST Feb 5, 2026-6pm CST Feb 11, 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