Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

72°F

22°C

Humidity 94%
Wind Speed S 9 mph
Barometer 30.02 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 16 Aug 7:45 pm CDT
Extended Forecast for

3 Miles NNE Capron IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am.  Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 79. East northeast wind 5 to 10 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 68. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 88. Heat index values as high as 98. Southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 70. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. East northeast wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 88. Heat index values as high as 98. Southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southwest wind around 5 mph, with gusts as high as 15 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Capron IL
 42.44°N 88.73°W
7:26 pm CDT Aug 16, 2025
8pm CDT Aug 16, 2025-6pm CDT Aug 23, 2025
 
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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