Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

39°F

4°C

Humidity 93%
Wind Speed E 5 mph
Barometer 29.98 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 1 May 1:35 am CDT
Extended Forecast for

South Beloit IL

Flood Warning May 1, 01:44am until May 6, 07:00pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning May 1, 01:44am until May 6, 07:00pm

    NOW until 7:00pm Wed

    Flood Warning

  • Overnight

    Low: 37 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 3pm.  Patchy frost before 8am.  Otherwise, partly sunny, with a high near 51. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 51 °F

    Patchy Frost
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Widespread frost, mainly after 3am.  Otherwise, partly cloudy, with a low around 32. North wind around 5 mph becoming calm  in the evening. Winds could gust as high as 10 mph.

    Low: 32 °F

    Mostly Cloudy
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am.  Otherwise, mostly sunny, with a high near 55. Calm wind becoming northwest around 5 mph in the morning. Winds could gust as high as 15 mph.

    High: 55 °F

    Frost then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 1pm.  Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers before 3am. Mostly cloudy, with a low around 37. North wind around 5 mph.
Friday
A 20 percent chance of showers after 3pm. Patchy frost before 8am. Otherwise, partly sunny, with a high near 51. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. North wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 55. Calm wind becoming northwest around 5 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 40. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 45.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73.
Monday Night
A chance of showers. Partly cloudy, with a low around 44.
Tuesday
A chance of showers after 1pm. Partly sunny, with a high near 60.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 39.
Wednesday
A chance of showers. Partly sunny, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
1:21 am CDT May 1, 2026
1am CDT May 1, 2026-6pm CDT May 7, 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