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.

Partly Cloudy and Windy

45°F

7°C

Humidity 37%
Wind Speed NW 26 G 28 mph
Barometer 29.74 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 13 Mar 3:45 pm CDT
Extended Forecast for

Beloit WI

Winter Storm Watch March 15, 04:00pm until March 16, 07:00pm
Wind Advisory until March 13, 07:00pm
Click here for hazard details and duration
Winter Storm Watch
Wind Advisory
  •  
    Wind Advisory until March 13, 07:00pm

    NOW until 7:00pm Fri

    Wind Advisory

  • This Afternoon

    High: 44 °F

    Mostly Sunny
    and Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 27. Northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 35 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Cloudy, with a high near 40. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 40 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A chance of snow before 11pm, then a chance of rain and snow between 11pm and 1am, then a chance of rain after 1am. Cloudy, with a low around 33. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 33 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: Rain and possibly a thunderstorm. High near 57. Breezy, with a southeast wind 15 to 20 mph becoming south in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Rain Likely
    then Rain and
    Breezy

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 10pm. Patchy blowing snow after 10pm. Low around 19. Windy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 22. Windy, with a northwest wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.

    High: 22 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 5. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 5 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 44. Windy, with a northwest wind around 30 mph, with gusts as high as 45 mph.
Tonight
Partly cloudy, with a low around 27. Northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 35 mph.
Saturday
A 20 percent chance of snow after noon. Cloudy, with a high near 40. Light east wind becoming southeast 5 to 10 mph in the morning.
Saturday Night
A chance of snow before 11pm, then a chance of rain and snow between 11pm and 1am, then a chance of rain after 1am. Cloudy, with a low around 33. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday
Rain and possibly a thunderstorm. High near 57. Breezy, with a southeast wind 15 to 20 mph becoming south in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 10pm. Patchy blowing snow after 10pm. Low around 19. Windy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 22. Windy, with a northwest wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 5. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Increasing clouds, with a high near 23.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 50.
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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:
3:33 pm CDT Mar 13, 2026
Forecast Valid:
4pm CDT Mar 13, 2026-6pm CDT Mar 20, 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