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

34°F

1°C

Humidity 81%
Wind Speed S 5 mph
Barometer 30.00 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 19 Mar 5:45 am CDT
Extended Forecast for

4 Miles WNW Beloit WI

  • Today

    Today: Mostly sunny, with a high near 49. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Southeast wind around 5 mph becoming southwest after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 59. Southwest wind around 10 mph.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Northwest wind around 5 mph becoming southeast after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. South wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. South wind around 10 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 51. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 51 °F

    Slight Chance
    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27. North wind 10 to 15 mph.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 49. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 36. Southeast wind around 5 mph becoming southwest after midnight.
Friday
Mostly cloudy, with a high near 59. Southwest wind around 10 mph.
Friday Night
Mostly cloudy, with a low around 38. Northwest wind around 5 mph becoming southeast after midnight.
Saturday
Mostly sunny, with a high near 65. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 44. South wind around 10 mph.
Sunday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 51. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 27. North wind 10 to 15 mph.
Monday
Sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
5:46 am CDT Mar 19, 2026
Forecast Valid:
6am CDT Mar 19, 2026-6pm CDT Mar 25, 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