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.

Fair

37°F

3°C

Humidity 65%
Wind Speed SW 7 mph
Barometer 30.00 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 18 Mar 5:45 pm CDT
Extended Forecast for

4 Miles WNW Beloit WI

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 5am. Increasing clouds, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain, mainly before 7am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 48. East wind around 5 mph.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 36. East 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 becoming northwest in the afternoon.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

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

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67. Southwest wind 5 to 10 mph.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. Southwest wind around 10 mph becoming north after midnight.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 53. Northeast wind around 15 mph.

    High: 53 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 5am. Increasing clouds, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of rain, mainly before 7am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 48. East wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 36. East wind around 5 mph becoming southwest after midnight.
Friday
Mostly cloudy, with a high near 59. Southwest wind around 10 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 38. Northwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 67. Southwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 41. Southwest wind around 10 mph becoming north after midnight.
Sunday
Mostly cloudy, with a high near 53. Northeast wind around 15 mph.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 56.
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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:
4:34 pm CDT Mar 18, 2026
Forecast Valid:
6pm CDT Mar 18, 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