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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

70°F

21°C

Humidity 43%
Wind Speed N 13 G 17 mph
Barometer 29.99 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Jun 11:45 am CDT
Extended Forecast for

Roscoe IL

  • Juneteenth

    Juneteenth: Increasing clouds, with a high near 76. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 56. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 55. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 71. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

Detailed Forecast

Juneteenth
Increasing clouds, with a high near 76. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 56. West wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 55. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 71. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Partly sunny, with a high near 76.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 55.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.43°N 89.02°W
Last Update:
11:36 am CDT Jun 19, 2026
Forecast Valid:
12pm CDT Jun 19, 2026-6pm CDT Jun 25, 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