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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Rain and Breezy

54°F

12°C

Humidity 94%
Wind Speed S 21 G 28 mph
Barometer 29.41 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Wind Chill49°F (9°C)
Last update 8 Jan 6:45 pm CST
Extended Forecast for

4 Miles WNW Beloit WI

  • Tonight

    Tonight: Rain and possibly a thunderstorm before 3am, then a chance of rain. Low around 37. Breezy, with a south wind around 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Breezy. Rain
    then Chance
    Rain

  • Friday

    Friday: A 40 percent chance of rain, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 42. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 42 °F

    Chance Rain
    and Breezy
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog between 11pm and midnight. Otherwise, increasing clouds, with a low around 29. Northwest wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow. Mostly cloudy, with a high near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 33 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph.

    Low: 19 °F

    Chance Snow
    and Blustery

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 30. Northwest wind 10 to 15 mph.

    High: 30 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Southwest wind 10 to 15 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 38. Southwest wind 10 to 15 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30.

    Low: 30 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Rain and possibly a thunderstorm before 3am, then a chance of rain. Low around 37. Breezy, with a south wind around 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of rain, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 42. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Patchy fog between 11pm and midnight. Otherwise, increasing clouds, with a low around 29. Northwest wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 30. Northwest wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 21. Southwest wind 10 to 15 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 38. Southwest wind 10 to 15 mph.
Monday Night
Increasing clouds, with a low around 30.
Tuesday
A chance of rain and snow after noon. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Partly sunny, with a high near 27.
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:
6:09 pm CST Jan 8, 2026
Forecast Valid:
7pm CST Jan 8, 2026-6pm CST Jan 15, 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