Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

86°F

30°C

Humidity 59%
Wind Speed SW 8 mph
Barometer 29.94 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 8 Jul 5:45 pm CDT
Extended Forecast for

3 Miles WSW Harvard IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 3am.  Partly cloudy, with a low around 68. South southwest wind 5 to 10 mph.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm.  Mostly cloudy, with a high near 82. Southwest wind around 5 mph becoming west northwest in the afternoon. Winds could gust as high as 10 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight.  Mostly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82. East northeast wind 5 to 10 mph.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 68. South southwest wind 5 to 10 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 82. Southwest wind around 5 mph becoming west northwest in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 82. East northeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 60. East northeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 62.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Harvard IL
 42.42°N 88.67°W
5:16 pm CDT Jul 8, 2026
6pm CDT Jul 8, 2026-6pm CDT Jul 15, 2026
 
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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