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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

19°F

-7°C

Humidity 68%
Wind Speed NW 15 mph
Barometer 30.44 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 23 Feb 2:35 am CST
Extended Forecast for

South Beloit IL

  • Overnight

    Overnight: Partly cloudy, with a low around 11. Wind chill values as low as -3. North northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 27. Wind chill values as low as -4. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 27 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 16. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 16 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of snow before 3pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Breezy, with a south wind 15 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 30%.

    High: 40 °F

    Breezy.
    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. West northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow before noon. Partly sunny, with a high near 34.

    High: 34 °F

    Chance Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 11. Wind chill values as low as -3. North northwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 27. Wind chill values as low as -4. North wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Increasing clouds, with a low around 16. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
A chance of snow before 3pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Breezy, with a south wind 15 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 20. West northwest wind around 15 mph, with gusts as high as 30 mph.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 20.
Thursday
A chance of snow before noon. Partly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.47°N 89.02°W
Last Update:
2:41 am CST Feb 23, 2026
Forecast Valid:
2am CST Feb 23, 2026-6pm CST Mar 1, 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