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

46°F

8°C

Humidity 29%
Wind Speed NW 12 mph
Barometer 29.95 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 16 Nov 3:45 pm CST
Extended Forecast for

Beloit WI

  • Tonight

    Tonight: Clear, with a low around 26. Northwest wind around 5 mph becoming calm after midnight.

    Low: 26 °F

    Clear

  • Monday

    Monday: A slight chance of rain and snow after 5pm. Increasing clouds, with a high near 46. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.

    High: 46 °F

    Sunny then
    Slight Chance
    Rain/Snow

  • Monday Night

    Monday Night: A chance of rain and snow before 8pm, then snow likely between 8pm and 11pm, then rain and snow after 11pm. Low around 35. Light southeast wind becoming east 5 to 10 mph after midnight. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 9am. High near 43. East wind around 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. East wind 5 to 10 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47. East wind around 5 mph becoming southeast in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly after noon. Mostly cloudy, with a high near 52. Light southeast wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Clear, with a low around 26. Northwest wind around 5 mph becoming calm after midnight.
Monday
A slight chance of rain and snow after 5pm. Increasing clouds, with a high near 46. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Monday Night
A chance of rain and snow before 8pm, then snow likely between 8pm and 11pm, then rain and snow after 11pm. Low around 35. Light southeast wind becoming east 5 to 10 mph after midnight. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday
Rain and snow, becoming all rain after 9am. High near 43. East wind around 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Mostly cloudy, with a low around 35. East wind 5 to 10 mph.
Wednesday
Mostly cloudy, with a high near 47. East wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 36. Calm wind.
Thursday
Rain likely, mainly after noon. Mostly cloudy, with a high near 52. Light southeast wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 52.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 33.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
Last Update:
3:14 pm CST Nov 16, 2025
Forecast Valid:
4pm CST Nov 16, 2025-6pm CST Nov 23, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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