Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

59°F

15°C

Humidity 45%
Wind Speed W 14 mph
Barometer 29.95 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 8 Nov 3:45 pm CST
Extended Forecast for

Roscoe IL

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 33. West northwest wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 15 mph.

    Low: 33 °F

    Clear then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 59. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. South southwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Calm wind becoming west northwest around 5 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: A 40 percent chance of rain.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 33. West northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 59. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 39. South southwest wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 61. Calm wind becoming west northwest around 5 mph.
Tuesday Night
Partly cloudy, with a low around 37. Calm wind.
Veterans Day
A 40 percent chance of rain. Mostly cloudy, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.43°N 89.02°W
3:46 pm CST Nov 8, 2026
4pm CST Nov 8, 2026-6pm CST Nov 15, 2026
 
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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