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

Strong to Severe Thunderstorms in the East; Heat in the Central and Western U.S.

Strong to potentially severe thunderstorms with damaging wind gusts are forecast Thursday from parts of New England into the Mid Atlantic and Carolinas. Significant heat will expand across the West and Central Plains through Friday, potentially breaking daily high temperature records. Dangerous heat will then build into the Eastern U.S. this weekend through much of next week. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

64°F

18°C

Humidity 94%
Wind Speed Calm
Barometer 29.77 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 18 Jun 10:50 pm CDT
Extended Forecast for

3 Miles W Beloit WI

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. Northwest wind around 5 mph.

    Low: 62 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 83. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. West wind around 5 mph becoming south after midnight.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 84. South wind 5 to 15 mph.

    High: 84 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 94. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 94 °F

    Hot and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 75. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 95 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. Northwest wind around 5 mph.
Juneteenth
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 83. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 63. West wind around 5 mph becoming south after midnight.
Friday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 84. South wind 5 to 15 mph.
Friday Night
Mostly clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny and hot, with a high near 94. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Clear, with a low around 75. Southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday
Sunny and hot, with a high near 95. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 93.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 72.
Tuesday
Showers and thunderstorms likely. Mostly sunny and hot, with a high near 90. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Beloit WI
 42.52°N 89.07°W (Elev. 797 ft)
Last Update:
10:38 pm CDT Jun 18, 2025
Forecast Valid:
11pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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