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.

Mostly Cloudy

75°F

24°C

Humidity 39%
Wind Speed W 8 G 16 mph
Barometer 29.95 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 19 Jun 2:45 pm CDT
Extended Forecast for

Roscoe IL

  • Juneteenth

    Juneteenth: Sunny early, then becoming partly sunny, with a high near 75. West wind around 10 mph, with gusts as high as 15 mph.

    High: 75 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 77. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Light east wind increasing to 10 to 15 mph in the morning. 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 before 1am, then a chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Monday Night

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

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny early, then becoming partly sunny, with a high near 75. West wind around 10 mph, with gusts as high as 15 mph.
Tonight
Showers and thunderstorms likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 77. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Light east wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 55.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 53.
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 88.99°W
Last Update:
2:41 pm CDT Jun 19, 2026
Forecast Valid:
2pm 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