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.

Fair

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 22 Aug 12:15 am CDT
Extended Forecast for

4 Miles WNW Beloit WI

  • Overnight

    Overnight: Mostly clear, with a low around 59. Northwest wind around 5 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78. Northwest wind 5 to 15 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54. Northwest wind 5 to 10 mph.

    Low: 54 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Northwest wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. North wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 74. Calm wind becoming north around 5 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers. Partly sunny, with a high near 77. Light south wind increasing to 5 to 10 mph in the morning.

    High: 77 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 59. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 78. Northwest wind 5 to 15 mph.
Saturday Night
Clear, with a low around 54. Northwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 73. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 51. North wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 74. Calm wind becoming north around 5 mph.
Monday Night
Partly cloudy, with a low around 56. Calm wind.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 77. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
11:56 pm CDT Aug 21, 2026
Forecast Valid:
12am CDT Aug 22, 2026-6pm CDT Aug 28, 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