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.

Fair

36°F

2°C

Humidity 81%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 14 Nov 4:15 am CST
Extended Forecast for

5 Miles SSW Janesville WI

  • Today

    Today: Sunny, with a high near 64. Light south wind increasing to 5 to 10 mph in the morning.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. South wind around 10 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 65. Southwest wind 10 to 15 mph becoming northwest in the afternoon.

    High: 65 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Northwest wind 10 to 15 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 47. Northwest wind 10 to 15 mph.

    High: 47 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. West wind 5 to 10 mph becoming light northwest after midnight.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 44. Calm wind becoming north around 5 mph in the morning.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of rain and snow before midnight, then a chance of freezing rain. Mostly cloudy, with a low around 27. Northeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 27 °F

    Chance
    Rain/Snow
    then Chance
    Freezing Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 43.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 64. Light south wind increasing to 5 to 10 mph in the morning.
Tonight
Increasing clouds, with a low around 52. South wind around 10 mph.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 65. Southwest wind 10 to 15 mph becoming northwest in the afternoon.
Saturday Night
Mostly clear, with a low around 30. Northwest wind 10 to 15 mph.
Sunday
Sunny, with a high near 47. Northwest wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around 24. West wind 5 to 10 mph becoming light northwest after midnight.
Monday
Mostly sunny, with a high near 44. Calm wind becoming north around 5 mph in the morning.
Monday Night
A chance of rain and snow before midnight, then a chance of freezing rain. Mostly cloudy, with a low around 27. Northeast wind around 5 mph. Chance of precipitation is 40%.
Tuesday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
3:12 am CST Nov 14, 2025
Forecast Valid:
4am CST Nov 14, 2025-6pm CST Nov 20, 2025
 
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