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

43°F

6°C

Humidity 34%
Wind Speed SE 16 mph
Barometer 30.33 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 2 Mar 12:45 pm CST
Extended Forecast for

4 Miles WNW Beloit WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 43. South wind 5 to 10 mph.

    High: 43 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of snow between 3am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 45. East wind around 5 mph becoming calm.

    High: 45 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. Calm wind becoming east around 5 mph after midnight.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain. Mostly sunny, with a high near 51. East wind 5 to 10 mph.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 38. East wind around 5 mph.

    Low: 38 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely. Cloudy, with a high near 53. East wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 41. Northeast wind around 5 mph becoming southeast after midnight.

    Low: 41 °F

    Chance Rain

  • Friday

    Friday: Rain. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 43. South wind 5 to 10 mph.
Tonight
A slight chance of snow between 3am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Southeast wind around 5 mph. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of rain, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 45. East wind around 5 mph becoming calm.
Tuesday Night
Partly cloudy, with a low around 29. Calm wind becoming east around 5 mph after midnight.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 51. East wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38. East wind around 5 mph.
Thursday
Rain likely. Cloudy, with a high near 53. East wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 41. Northeast wind around 5 mph becoming southeast after midnight.
Friday
Rain. High near 63. Chance of precipitation is 90%.
Friday Night
Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 80%.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 59.
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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:
1:32 pm CST Mar 2, 2026
Forecast Valid:
1pm CST Mar 2, 2026-6pm CDT Mar 8, 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