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.

Light Rain

59°F

15°C

Humidity 88%
Wind Speed S 16 G 20 mph
Barometer 29.70 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 7 Mar 12:15 am CST
Extended Forecast for

4 Miles WNW Beloit WI

  • Overnight

    Overnight: Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Low around 55. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers before 10am. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a temperature falling to around 42 by 5pm. Breezy, with a southwest wind 15 to 20 mph becoming west in the morning. Winds could gust as high as 25 mph.

    High: 58 °F⇓

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 32. West wind 10 to 15 mph becoming southwest after midnight.

    Low: 32 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. Southwest wind 10 to 15 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 40. West wind 5 to 10 mph becoming east after midnight.

    Low: 40 °F

    Clear

  • Tuesday

    Tuesday: Showers likely after noon. Increasing clouds, with a high near 59. East wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 34. Chance of precipitation is 80%.

    Low: 34 °F

    Rain

Detailed Forecast

Overnight
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Low around 55. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of showers before 10am. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a temperature falling to around 42 by 5pm. Breezy, with a southwest wind 15 to 20 mph becoming west in the morning. Winds could gust as high as 25 mph.
Saturday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 32. West wind 10 to 15 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 45. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 68. Southwest wind 10 to 15 mph.
Monday Night
Clear, with a low around 40. West wind 5 to 10 mph becoming east after midnight.
Tuesday
Showers likely after noon. Increasing clouds, with a high near 59. East wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 34. Chance of precipitation is 80%.
Wednesday
A chance of rain and snow. Cloudy, with a high near 42. Chance of precipitation is 50%.
Wednesday Night
A 20 percent chance of snow. Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 45.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 33. Chance of precipitation is 40%.
Friday
A slight chance of rain and snow. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
12:22 am CST Mar 7, 2026
Forecast Valid:
12am CST Mar 7, 2026-6pm CDT Mar 13, 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