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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

54°F

12°C

Humidity 38%
Wind Speed S 13 G 17 mph
Barometer 29.95 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 25 Mar 10:45 am CDT
Extended Forecast for

4 Miles WNW Beloit WI

  • Today

    Today: Mostly sunny, with a high near 70. South wind around 15 mph, with gusts as high as 30 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 68. South wind 5 to 10 mph becoming north 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Mostly Sunny
    then Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 27. North wind around 15 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. North wind around 10 mph.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Northwest wind 5 to 10 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 51. West wind 5 to 15 mph.

    High: 51 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. South wind around 10 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 70. South wind around 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph.
Thursday
Rain, mainly after 1pm. High near 68. South wind 5 to 10 mph becoming north 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 27. North wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 44. North wind around 10 mph.
Friday Night
Mostly clear, with a low around 24. Northwest wind 5 to 10 mph.
Saturday
Increasing clouds, with a high near 51. West wind 5 to 15 mph.
Saturday Night
Partly cloudy, with a low around 35. South wind around 10 mph.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 45.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 71.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 49.
Tuesday
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 68.
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:
10:33 am CDT Mar 25, 2026
Forecast Valid:
11am CDT Mar 25, 2026-6pm CDT Mar 31, 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