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

**Beyond the Warning Presentation in Oglesby on 3/10/2026 POSTPONED**

Due to the potential for severe thunderstorms on Tuesday, March 10th, the Beyond the Warning seminar in Oglesby, IL has been POSTPONED. We intend to reschedule this session later this spring. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

61°F

16°C

Humidity 42%
Wind Speed SW 17 mph
Barometer 29.69 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 9 Mar 10:45 am CDT
Extended Forecast for

Roscoe IL

  • Today

    Today: Sunny, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. Southwest wind around 5 mph becoming east northeast after midnight.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 59. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 34. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 34 °F

    Showers

  • Wednesday

    Wednesday: Rain likely before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. Cloudy, with a high near 41. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 41 °F

    Rain Likely
    then
    Rain/Snow
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Rain Likely
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 46. Breezy.

    High: 46 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 44. Southwest wind around 5 mph becoming east northeast after midnight.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 59. East wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Showers and possibly a thunderstorm. Low around 34. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday
Rain likely before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. Cloudy, with a high near 41. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 25.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
Rain likely. Mostly cloudy, with a low around 35. Breezy.
Friday
Mostly sunny, with a high near 46. Breezy.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
A chance of snow. Cloudy, with a high near 44.
Saturday Night
A chance of rain and snow. Cloudy, with a low around 32.
Sunday
Rain and snow likely. Cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.41°N 89.02°W
Last Update:
10:51 am CDT Mar 9, 2026
Forecast Valid:
11am CDT Mar 9, 2026-6pm CDT Mar 15, 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