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.

Overcast

46°F

8°C

Humidity 93%
Wind Speed SW 7 mph
Barometer 29.66 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 5 Nov 3:35 am CST
Extended Forecast for

Roscoe IL

  • Overnight

    Overnight: Areas of drizzle with scattered showers. Cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 47 °F

    Areas Drizzle

  • Thursday

    Thursday: Areas of drizzle with scattered showers before noon, then scattered showers after noon. Cloudy, with a high near 51. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 51 °F

    Areas Drizzle

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Gradual
    Clearing

  • Friday

    Friday: Mostly sunny, with a high near 47. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. North northwest wind 5 to 10 mph becoming light northwest in the evening.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Overnight
Areas of drizzle with scattered showers. Cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday
Areas of drizzle with scattered showers before noon, then scattered showers after noon. Cloudy, with a high near 51. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 47. North wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 26. North northwest wind 5 to 10 mph becoming light northwest in the evening.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 36.
Veterans Day
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.41°N 88.99°W
Last Update:
3:11 am CST Nov 5, 2026
Forecast Valid:
4am CST Nov 5, 2026-6pm CST Nov 11, 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