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

37°F

3°C

Humidity 87%
Wind Speed W 13 mph
Barometer 29.91 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 7 Mar 7:45 pm CST
Extended Forecast for

Beloit WI

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Southwest wind 5 to 15 mph.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Southwest wind 5 to 10 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Southwest wind around 5 mph becoming east after midnight.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely after noon. Increasing clouds, with a high near 66. East wind 5 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Sunny then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 33. East wind around 15 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain

  • Wednesday

    Wednesday: Rain and snow likely, mainly before noon. Cloudy, with a high near 43. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. Southwest wind 5 to 15 mph.
Sunday
Sunny, with a high near 61. Southwest wind around 15 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 44. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 69. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 43. Southwest wind around 5 mph becoming east after midnight.
Tuesday
Rain likely after noon. Increasing clouds, with a high near 66. East wind 5 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 33. East wind around 15 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain and snow likely, mainly before noon. Cloudy, with a high near 43. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 46.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 56. Breezy.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
Last Update:
7:37 pm CST Mar 7, 2026
Forecast Valid:
7pm CST Mar 7, 2026-6pm CDT Mar 14, 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