National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

48°F

9°C

Humidity 58%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 30 Apr 10:45 am CDT
Extended Forecast for

Beloit WI

Flood Warning April 30, 11:19am until May 7, 01:00am
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning April 30, 11:19am until May 7, 01:00am

    NOW until 1:00am Thu

    Flood Warning

  • Today

    High: 54 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers before 11pm. Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 34. North wind around 5 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Scattered
    Showers then
    Areas Frost

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Areas of frost before 8am. Otherwise, partly sunny, with a high near 51. North wind 5 to 10 mph.

    High: 51 °F

    Areas 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.

    Low: 32 °F

    Mostly Cloudy
    then Frost

  • Saturday

    Saturday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 55. Light north wind becoming northwest 5 to 10 mph in the morning.

    High: 55 °F

    Frost then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. West wind around 5 mph becoming southwest in the evening.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 65. Southwest wind 5 to 15 mph.

    High: 65 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 44. West wind 5 to 10 mph.

    Low: 44 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely, mainly after noon. Mostly cloudy, with a high near 54. West wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Scattered showers before 11pm. Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 34. North wind around 5 mph. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers after 4pm. Areas of frost before 8am. Otherwise, partly sunny, with a high near 51. North wind 5 to 10 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.
Saturday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 55. Light north wind becoming northwest 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 39. West wind around 5 mph becoming southwest in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 65. Southwest wind 5 to 15 mph.
Sunday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 44. West wind 5 to 10 mph.
Monday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 69. Breezy.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 44.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 65.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
Last Update:
10:33 am CDT Apr 30, 2026
Forecast Valid:
11am CDT Apr 30, 2026-6pm CDT May 6, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation