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.

Overcast

16°F

-9°C

Humidity 73%
Wind Speed N 14 G 20 mph
Barometer 30.48 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 31 Jan 8:45 am CST
Extended Forecast for

5 Miles WSW Fort Atkinson WI

  • Today

    Today: A chance of flurries before 10am. Mostly sunny, with a high near 20. Wind chill values between zero and 10. North wind 5 to 10 mph becoming light in the afternoon.

    High: 20 °F

    Chance
    Flurries

  • Tonight

    Tonight: Mostly clear, with a low around 3. Calm wind becoming south around 5 mph.

    Low: 3 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Partly sunny, with a high near 25. Wind chill values between -5 and 5. South wind 5 to 10 mph.

    High: 25 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Snow Likely
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 25. Northwest wind 5 to 10 mph.

    High: 25 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 10. Northwest wind around 5 mph becoming calm in the evening.

    Low: 10 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 23. North wind around 5 mph.

    High: 23 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 4. North wind around 5 mph becoming calm in the evening.

    Low: 4 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of flurries before 10am. Mostly sunny, with a high near 20. Wind chill values between zero and 10. North wind 5 to 10 mph becoming light in the afternoon.
Tonight
Mostly clear, with a low around 3. Calm wind becoming south around 5 mph.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 25. Wind chill values between -5 and 5. South wind 5 to 10 mph.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 25. Northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 10. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 23. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 4. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 23.
Wednesday Night
Partly cloudy, with a low around 6.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 29.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 23.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 32.
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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:
7:32 am CST Jan 31, 2026
Forecast Valid:
9am CST Jan 31, 2026-6pm CST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation