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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

73°F

23°C

Humidity 50%
Wind Speed W 8 mph
Barometer 29.83 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 16 Apr 3:45 pm CDT
Extended Forecast for

4 Miles WNW Beloit WI

Flood Watch April 17, 01:00pm until April 18, 07:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 54. Calm wind becoming southeast around 5 mph after midnight.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 78 °F

    Patchy Fog
    then Severe
    Thunderstorms
    and Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could be severe. Low around 39. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 39 °F

    Severe
    Thunderstorms
    and Breezy
    then Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Slight Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. South wind 5 to 10 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 54. Calm wind becoming southeast around 5 mph after midnight.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could be severe. Low around 39. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 31. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 58. South wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 69.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 47.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
3:32 pm CDT Apr 16, 2026
Forecast Valid:
4pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
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