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.

Mostly Cloudy

21°F

-6°C

Humidity 68%
Wind Speed N 10 mph
Barometer 30.45 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 31 Jan 12:45 pm CST
Extended Forecast for

3 Miles NNW Afton WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 21. North wind 5 to 10 mph.

    High: 21 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 4. Wind chill values between -5 and zero. Calm wind becoming south around 5 mph after midnight.

    Low: 4 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow after 11am. Partly sunny, with a high near 24. Wind chill values between -5 and 5. South wind 5 to 10 mph.

    High: 24 °F

    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 8. Northwest wind around 5 mph.

    Low: 8 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 20. North wind around 5 mph.

    High: 20 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 3. North wind around 5 mph becoming calm in the evening.

    Low: 3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 21. North wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 4. Wind chill values between -5 and zero. Calm wind becoming south around 5 mph after midnight.
Sunday
A 50 percent chance of snow after 11am. Partly sunny, with a high near 24. 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 8. Northwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 20. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 3. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 22.
Wednesday Night
Partly cloudy, with a low around 9.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 32.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25.
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:
3 Miles NNW Afton WI
 42.74°N 89.12°W (Elev. 948 ft)
Last Update:
1:13 pm CST Jan 31, 2026
Forecast Valid:
1pm CST Jan 31, 2026-6pm CST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation