National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

12°F

-11°C

Humidity 57%
Wind Speed W 14 G 18 mph
Barometer 30.14 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 28 Jan 1:45 pm CST
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 15. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph.

    High: 15 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around -6. Wind chill values between -10 and -15. Northwest wind 5 to 10 mph.

    Low: -6 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 13. Wind chill values between -5 and -15. Northwest wind around 5 mph.

    High: 13 °F

    Sunny

  • Thursday Night

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

    Low: -3 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 14. North wind 10 to 15 mph.

    High: 14 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

  • 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 3. Northwest wind around 5 mph becoming calm in the evening.

    Low: 3 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 24.

    High: 24 °F

    Chance Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 15. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph.
Tonight
Mostly clear, with a low around -6. Wind chill values between -10 and -15. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 13. Wind chill values between -5 and -15. Northwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around -3. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.
Friday
A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 14. 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 3. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 24.
Sunday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 12.
Monday
Mostly cloudy, with a high near 26.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
1:47 pm CST Jan 28, 2026
Forecast Valid:
2pm CST Jan 28, 2026-6pm CST Feb 3, 2026
 
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Additional Resources

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Chance of Precipitation