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.

Partly Cloudy

46°F

8°C

Humidity 93%
Wind Speed W 6 mph
Barometer 29.81 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 5 Nov 5:45 am CST
Extended Forecast for

Roscoe IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 57. Breezy, with a west wind 5 to 10 mph becoming north northwest 15 to 20 mph in the morning. Winds could gust as high as 35 mph.

    High: 57 °F

    Becoming
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 29. West northwest wind 5 to 10 mph becoming light in the evening.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 56. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 56 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers likely, mainly after midnight. Cloudy, with a low around 45. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers before noon. Mostly sunny, with a high near 62. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain likely, possibly mixed with snow, mainly before midnight. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Rain/Snow
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 57. Breezy, with a west wind 5 to 10 mph becoming north northwest 15 to 20 mph in the morning. Winds could gust as high as 35 mph.
Tonight
Mostly clear, with a low around 29. West northwest wind 5 to 10 mph becoming light in the evening.
Thursday
Increasing clouds, with a high near 56. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Showers likely, mainly after midnight. Cloudy, with a low around 45. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 62. West wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
A 50 percent chance of rain after noon. Partly sunny, with a high near 46.
Saturday Night
Rain likely, possibly mixed with snow, mainly before midnight. Mostly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 19.
Monday
Sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 19.
Veterans Day
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.43°N 89.02°W
Last Update:
5:11 am CST Nov 5, 2025
Forecast Valid:
6am CST Nov 5, 2025-6pm CST Nov 11, 2025
 
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Additional Resources

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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