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.

Overcast

36°F

2°C

Humidity 75%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 3 Mar 10:45 am CST
Extended Forecast for

Beloit WI

  • Today

    Today: Mostly cloudy, with a high near 46. Calm wind becoming northeast around 5 mph.

    High: 46 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Calm wind becoming northeast around 5 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. East wind 5 to 10 mph.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 38 °F

    Slight Chance
    Rain then
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly before noon. Cloudy, with a high near 53. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 41. East wind around 5 mph becoming calm.

    Low: 41 °F

    Slight Chance
    Rain

  • Friday

    Friday: Rain, with thunderstorms also possible after noon. High near 65. Southeast wind 5 to 15 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 49. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 46. Calm wind becoming northeast around 5 mph.
Tonight
Partly cloudy, with a low around 29. Calm wind becoming northeast around 5 mph.
Wednesday
Mostly sunny, with a high near 53. East wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 38. East wind around 5 mph.
Thursday
Rain likely, mainly before noon. Cloudy, with a high near 53. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 41. East wind around 5 mph becoming calm.
Friday
Rain, with thunderstorms also possible after noon. High near 65. Southeast wind 5 to 15 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain and possibly a thunderstorm. Low around 49. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 61.
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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:
11:07 am CST Mar 3, 2026
Forecast Valid:
11am CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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