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.

Partly Cloudy

61°F

16°C

Humidity 25%
Wind Speed W 10 mph
Barometer 29.70 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 27 Feb 4:45 pm CST
Extended Forecast for

Beloit WI

  • Tonight

    Tonight: Partly cloudy, with a low around 26. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow, mainly between 9am and 5pm. Cloudy, with a high near 33. Northeast wind 5 to 10 mph.

    High: 33 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 17. North wind 5 to 10 mph.

    Low: 17 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 32. Northeast wind 5 to 10 mph.

    High: 32 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 17. East wind around 5 mph.

    Low: 17 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 41. Southeast wind 5 to 10 mph.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of freezing rain after midnight. Mostly cloudy, with a low around 29. Southeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Freezing Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 42. East wind 5 to 10 mph becoming northeast in the afternoon.

    High: 42 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain. Partly cloudy, with a low around 28.

    Low: 28 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.
Saturday
A 50 percent chance of snow, mainly between 9am and 5pm. Cloudy, with a high near 33. Northeast wind 5 to 10 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 17. North wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 32. Northeast wind 5 to 10 mph.
Sunday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 17. East wind around 5 mph.
Monday
Partly sunny, with a high near 41. Southeast wind 5 to 10 mph.
Monday Night
A chance of freezing rain after midnight. Mostly cloudy, with a low around 29. Southeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 42. East wind 5 to 10 mph becoming northeast in the afternoon.
Tuesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 28.
Wednesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 48.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Thursday
Rain likely. Cloudy, with a high near 50. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
Last Update:
4:41 pm CST Feb 27, 2026
Forecast Valid:
4pm CST Feb 27, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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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