Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

57°F

14°C

Humidity 72%
Wind Speed S 5 mph
Barometer 30.15 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 3 Oct 9:55 pm CDT
Extended Forecast for

South Beloit IL

  • Tonight

    Tonight: A slight chance of showers between 1am and 3am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Southwest wind around 5 mph.  Chance of precipitation is 20%.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 67. West wind 5 to 10 mph becoming northwest in the morning.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 41. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64. Calm wind becoming northeast around 5 mph.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Calm wind becoming south around 5 mph after midnight.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. South wind 5 to 15 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. South wind 5 to 10 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. West wind 5 to 10 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 1am and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Southwest wind around 5 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 67. West wind 5 to 10 mph becoming northwest in the morning.
Sunday Night
Clear, with a low around 41. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 64. Calm wind becoming northeast around 5 mph.
Monday Night
Mostly clear, with a low around 44. Calm wind becoming south around 5 mph after midnight.
Tuesday
Sunny, with a high near 68. South wind 5 to 15 mph.
Tuesday Night
Mostly clear, with a low around 51. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 71. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W (Elev. 751 ft)
9:46 pm CDT Oct 3, 2026
10pm CDT Oct 3, 2026-6pm CDT Oct 10, 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