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.

Fair

9°F

-13°C

Humidity 61%
Wind Speed SW 17 G 29 mph
Barometer 30.01 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 26 Jan 8:45 pm CST
Extended Forecast for

Roscoe IL

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 11 by 2am. Wind chill values as low as -13. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 7 °F⇑

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A chance of flurries after noon. Partly sunny, with a high near 12. Wind chill values as low as -9. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 12 °F

    Chance
    Flurries and
    Blustery

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -2. Wind chill values as low as -14. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 13. Wind chill values as low as -14. West northwest wind 5 to 15 mph.

    High: 13 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -4. Northwest wind around 5 mph, with gusts as high as 15 mph.

    Low: -4 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and cold, with a high near 9.

    High: 9 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -4.

    Low: -4 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 12.

    High: 12 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 11 by 2am. Wind chill values as low as -13. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday
A chance of flurries after noon. Partly sunny, with a high near 12. Wind chill values as low as -9. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around -2. Wind chill values as low as -14. West wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 13. Wind chill values as low as -14. West northwest wind 5 to 15 mph.
Wednesday Night
Mostly clear, with a low around -4. Northwest wind around 5 mph, with gusts as high as 15 mph.
Thursday
Sunny and cold, with a high near 9.
Thursday Night
Partly cloudy, with a low around -4.
Friday
Mostly sunny, with a high near 12.
Friday Night
Partly cloudy, with a low around 1.
Saturday
Sunny, with a high near 19.
Saturday Night
Mostly clear, with a low around 2.
Sunday
Partly sunny, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.43°N 88.99°W
Last Update:
8:56 pm CST Jan 26, 2026
Forecast Valid:
9pm CST Jan 26, 2026-6pm CST Feb 2, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation