National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

34°F

1°C

Humidity 100%
Wind Speed N 12 mph
Barometer 29.73 in
Dewpoint 34°F (1°C)
Visibility 2.00 mi
Wind Chill25°F (-4°C)
Last update 11 Mar 6:45 am CDT
Extended Forecast for

Roscoe IL

  • Today

    Today: Rain and snow before 3pm, then a chance of snow between 3pm and 4pm, then a slight chance of rain and snow after 4pm. High near 37. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 25. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 46. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 46 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 35. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely and
    Windy

  • Friday

    Friday: Partly sunny, with a high near 44. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 40 mph.

    High: 44 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow. Cloudy, with a high near 40.

    High: 40 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow before 1am, then rain and snow likely. Cloudy, with a low around 31.

    Low: 31 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain and snow. Cloudy, with a high near 40. Breezy.

    High: 40 °F

    Rain/Snow and
    Breezy

Detailed Forecast

Today
Rain and snow before 3pm, then a chance of snow between 3pm and 4pm, then a slight chance of rain and snow after 4pm. High near 37. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 25. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Increasing clouds, with a high near 46. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Showers likely. Mostly cloudy, with a low around 35. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 44. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 40 mph.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A 40 percent chance of snow. Cloudy, with a high near 40.
Saturday Night
A chance of snow before 1am, then rain and snow likely. Cloudy, with a low around 31.
Sunday
Rain and snow. Cloudy, with a high near 40. Breezy.
Sunday Night
A chance of snow before 1am. Mostly cloudy, with a low around 12. Blustery.
Monday
Partly sunny, with a high near 26. Blustery.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Mostly sunny, with a high near 28.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.41°N 89.02°W
Last Update:
4:11 am CDT Mar 11, 2026
Forecast Valid:
6am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
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