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.

Light Rain

64°F

18°C

Humidity 78%
Wind Speed NE 7 mph
Barometer 30.14 in
Dewpoint 57°F (14°C)
Visibility 2.00 mi
Last update 29 Aug 3:45 pm CDT
Extended Forecast for

Roscoe IL

  • This Afternoon

    This Afternoon: Scattered showers. Mostly cloudy, with a high near 75. Southeast wind around 5 mph. Chance of precipitation is 50%.

    High: 75 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly before 7pm. Mostly cloudy, with a low around 58. East southeast wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 30%.

    Low: 58 °F

    Scattered
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 73. East southeast wind around 5 mph.

    High: 73 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming east around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers. Mostly cloudy, with a high near 75. Southeast wind around 5 mph. Chance of precipitation is 50%.
Tonight
Scattered showers, mainly before 7pm. Mostly cloudy, with a low around 58. East southeast wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 73. East southeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 52.
Labor Day
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Scattered showers after 1am. Partly cloudy, with a low around 54.
Wednesday
Scattered showers. Mostly cloudy, with a high near 68.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.43°N 89.02°W
Last Update:
4:12 pm CDT Aug 29, 2025
Forecast Valid:
4pm CDT Aug 29, 2025-6pm CDT Sep 5, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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