Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy and Breezy

46°F

8°C

Humidity 46%
Wind Speed W 25 G 38 mph
Barometer 29.94 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 18 Apr 3:45 pm CDT
Extended Forecast for

Beloit WI

Flood Warning until further notice
Flood Warning April 18, 04:46pm until April 20, 08:30am
Click here for hazard details and duration
Flood Warning until further notice
Flood Warning
  •  
    Flood Warning until further notice
    Flood Warning April 18, 04:46pm until April 20, 08:30am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 30 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: A slight chance of rain and snow showers before 11am, then a chance of rain showers.  Mostly sunny, with a high near 49. West wind 5 to 15 mph becoming northwest in the afternoon.  Chance of precipitation is 30%.

    High: 49 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light  in the evening.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. South wind around 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. Southwest wind around 10 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. West wind around 5 mph becoming northeast after midnight.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 72 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Breezy, with a southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Sunday
A slight chance of rain and snow showers before 11am, then a chance of rain showers. Mostly sunny, with a high near 49. West wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light in the evening.
Monday
Sunny, with a high near 53. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 42. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 71. Southwest wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 46. West wind around 5 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 72. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
3:52 pm CDT Apr 18, 2026
4pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database