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 Calm
Barometer 30.24 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Last update 28 Jan 9:15 pm CST
Extended Forecast for

3 Miles NNW Afton WI

  • Tonight

    Tonight: Clear, with a low around -5. Wind chill values between -10 and -15. Northwest wind 5 to 10 mph.

    Low: -5 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 12. Wind chill values between -5 and -15. Northwest wind around 5 mph.

    High: 12 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -3. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 14. Wind chill values between -5 and -15. North wind 10 to 15 mph.

    High: 14 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 3. North wind around 10 mph.

    Low: 3 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 19. North wind 5 to 10 mph.

    High: 19 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.

    Low: 2 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 23. Southwest wind 5 to 10 mph.

    High: 23 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Tonight
Clear, with a low around -5. Wind chill values between -10 and -15. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 12. Wind chill values between -5 and -15. Northwest wind around 5 mph.
Thursday Night
Partly cloudy, with a low around -3. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.
Friday
Mostly sunny, with a high near 14. Wind chill values between -5 and -15. North wind 10 to 15 mph.
Friday Night
Partly cloudy, with a low around 3. North wind around 10 mph.
Saturday
Mostly sunny, with a high near 19. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 23. Southwest wind 5 to 10 mph.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 13.
Monday
Mostly cloudy, with a high near 27.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 16.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 28.
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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:
9:22 pm CST Jan 28, 2026
Forecast Valid:
9pm CST Jan 28, 2026-6pm CST Feb 4, 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