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.

Fair

39°F

4°C

Humidity 70%
Wind Speed SE 5 mph
Barometer 30.02 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 14 Nov 12:35 am CST
Extended Forecast for

Beloit WI

  • Overnight

    Overnight: Mostly clear, with a low around 35. South wind around 5 mph becoming calm.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. Light south wind increasing to 5 to 10 mph in the morning.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 52. Southwest wind 5 to 10 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 64. Southwest wind 10 to 15 mph becoming northwest in the afternoon.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Northwest wind around 10 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48. Northwest wind 10 to 15 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. West wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 46. Calm wind becoming north around 5 mph in the morning.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 35. South wind around 5 mph becoming calm.
Friday
Sunny, with a high near 64. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Increasing clouds, with a low around 52. Southwest wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 64. Southwest wind 10 to 15 mph becoming northwest in the afternoon.
Saturday Night
Mostly clear, with a low around 31. Northwest wind around 10 mph.
Sunday
Sunny, with a high near 48. Northwest wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around 25. West wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 46. Calm wind becoming north around 5 mph in the morning.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Tuesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 46.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 30.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 48.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.54°N 89.01°W (Elev. 810 ft)
Last Update:
12:16 am CST Nov 14, 2025
Forecast Valid:
12am CST Nov 14, 2025-6pm CST Nov 20, 2025
 
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