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.

A Few Clouds

50°F

10°C

Humidity 76%
Wind Speed NE 6 mph
Barometer 30.32 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 14 Oct 6:45 am CDT
Extended Forecast for

Roscoe IL

  • Today

    Today: Patchy fog before 9am. Otherwise, partly sunny, with a high near 70. East northeast wind 5 to 10 mph.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Showers likely, mainly after 4am. Mostly cloudy, with a low around 51. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 7am. Mostly cloudy, with a high near 61. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50. East wind around 5 mph, with gusts as high as 10 mph.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 70. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers. Mostly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, partly sunny, with a high near 70. East northeast wind 5 to 10 mph.
Tonight
Showers likely, mainly after 4am. Mostly cloudy, with a low around 51. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly before 7am. Mostly cloudy, with a high near 61. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 50. East wind around 5 mph, with gusts as high as 10 mph.
Thursday
Partly sunny, with a high near 70. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 76.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 58.
Saturday
A chance of showers. Mostly sunny, with a high near 71.
Saturday Night
A chance of showers. Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.41°N 89.02°W
Last Update:
4:11 am CDT Oct 14, 2025
Forecast Valid:
7am CDT Oct 14, 2025-6pm CDT Oct 20, 2025
 
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