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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

81°F

27°C

Humidity 84%
Wind Speed SW 15 mph
Barometer 29.91 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jun 7:45 am CDT
Extended Forecast for

Rockton IL

Extreme Heat Warning June 30, 08:44am until July 3, 12:00am
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 08:44am until July 3, 12:00am

    NOW until 12:00am Fri

    Extreme Heat Warning

  • Today

    High: 94 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 103. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 94. Heat index values as high as 106. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 103. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 69.
Independence Day
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockton IL
 42.45°N 89.08°W
Last Update:
7:46 am CDT Jun 30, 2026
Forecast Valid:
8am CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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