Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

63°F

17°C

Humidity 77%
Wind Speed S 10 mph
Barometer 29.87 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Apr 8:45 am 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
  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe.  Partly sunny, with a high near 80. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 80 °F

    Partly Sunny
    then Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Some of the storms could be severe.  Patchy fog between 11pm and 2am. Low around 39. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 39 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 47 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. South wind 5 to 10 mph.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 10 to 15 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Partly sunny, with a high near 80. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Tonight
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Some of the storms could be severe. Patchy fog between 11pm and 2am. Low around 39. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 31. West wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph.
Sunday Night
Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 56. South wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 44. South wind 10 to 15 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
8:57 am CDT Apr 17, 2026
9am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

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