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.

Overcast

54°F

12°C

Humidity 82%
Wind Speed SW 17 G 23 mph
Barometer 29.64 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 4 Nov 1:45 pm CST
Extended Forecast for

Beloit WI

  • This Afternoon

    This Afternoon: A chance of sprinkles between 2pm and 4pm. Cloudy, with a steady temperature around 54. Southwest wind 10 to 15 mph.

    High: 54 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: A chance of sprinkles between 2am and 4am, then a chance of rain after 4am. Cloudy, with a low around 46. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Cloudy then
    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 53. Southwest wind 10 to 15 mph becoming northwest in the afternoon.

    High: 53 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 36. North wind 10 to 15 mph.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48. North wind 10 to 15 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. North wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind around 5 mph becoming calm.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of sprinkles between 2pm and 4pm. Cloudy, with a steady temperature around 54. Southwest wind 10 to 15 mph.
Tonight
A chance of sprinkles between 2am and 4am, then a chance of rain after 4am. Cloudy, with a low around 46. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.
Thursday
A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 53. Southwest wind 10 to 15 mph becoming northwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 36. North wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 48. North wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 27. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 52. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 30. West wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.05°W (Elev. 751 ft)
Last Update:
1:36 pm CST Nov 4, 2026
Forecast Valid:
1pm CST Nov 4, 2026-6pm CST Nov 10, 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