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

10°F

-12°C

Humidity 85%
Wind Speed W 10 mph
Barometer 30.22 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 30 Dec 1:50 am CST
Extended Forecast for

3 Miles NNW Afton WI

  • Overnight

    Overnight: Partly cloudy, with a low around 7. Wind chill values between -5 and zero. West wind around 10 mph.

    Low: 7 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly after 3pm. Increasing clouds, with a high near 25. Wind chill values between -5 and 5. West wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 25 °F

    Slight Chance
    Snow then
    Snow Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly before 8pm. Mostly cloudy, with a low around 20. Northwest wind around 10 mph.

    Low: 20 °F

    Chance Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Snow likely after noon. Mostly cloudy, with a high near 29. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Mostly Cloudy
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Northwest wind 5 to 15 mph.

    Low: 3 °F

    Decreasing
    Clouds

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 18. Northwest wind around 5 mph.

    High: 18 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 10. Southwest wind around 5 mph.

    Low: 10 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 23. Northwest wind around 5 mph.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 7. Wind chill values between -5 and zero. West wind around 10 mph.
Tuesday
Snow likely, mainly after 3pm. Increasing clouds, with a high near 25. Wind chill values between -5 and 5. West wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 40 percent chance of snow, mainly before 8pm. Mostly cloudy, with a low around 20. Northwest wind around 10 mph.
Wednesday
Snow likely after noon. Mostly cloudy, with a high near 29. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Northwest wind 5 to 15 mph.
New Year's Day
Partly sunny, with a high near 18. Northwest wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 10. Southwest wind around 5 mph.
Friday
Mostly sunny, with a high near 23. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 24.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Partly sunny, 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:
1:57 am CST Dec 30, 2025
Forecast Valid:
2am CST Dec 30, 2025-6pm CST Jan 5, 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