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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

-4°F

-20°C

Humidity 84%
Wind Speed Calm
Barometer 30.34 in
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Last update 30 Jan 1:15 am CST
Extended Forecast for

Janesville WI

  • Overnight

    Overnight: A chance of flurries between 2am and 3am. Mostly cloudy, with a low around -2. Wind chill values between -5 and -10. North wind around 5 mph.

    Low: -2 °F

    Chance
    Flurries

  • Friday

    Friday: A 30 percent chance of snow showers, mainly before 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 15. Wind chill values between -5 and -15. North wind 5 to 15 mph.

    High: 15 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 5. Wind chill values between -5 and -10. North wind around 10 mph.

    Low: 5 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 20. Wind chill values between -5 and 5. North wind 5 to 10 mph.

    High: 20 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1. Calm wind.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 24. Light south wind increasing to 5 to 10 mph in the morning.

    High: 24 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 15. South wind around 5 mph becoming west after midnight.

    Low: 15 °F

    Chance Snow

  • Monday

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

    High: 25 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries between 2am and 3am. Mostly cloudy, with a low around -2. Wind chill values between -5 and -10. North wind around 5 mph.
Friday
A 30 percent chance of snow showers, mainly before 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 15. Wind chill values between -5 and -15. North wind 5 to 15 mph.
Friday Night
Partly cloudy, with a low around 5. Wind chill values between -5 and -10. North wind around 10 mph.
Saturday
Sunny, with a high near 20. Wind chill values between -5 and 5. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 1. Calm wind.
Sunday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 24. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15. South wind around 5 mph becoming west after midnight.
Monday
Partly sunny, with a high near 25. Northwest wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 25.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 14.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 25.
Wednesday Night
Mostly cloudy, with a low around 13.
Thursday
Mostly cloudy, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
Last Update:
12:08 am CST Jan 30, 2026
Forecast Valid:
1am CST Jan 30, 2026-6pm CST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation