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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

30°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Jan 6:45 pm CST
Extended Forecast for

2 Miles W Beloit WI

  • Tonight

    Tonight: A chance of rain before 3am, then rain and snow likely between 3am and 5am, then snow after 5am. Low around 30. North wind around 5 mph becoming calm. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Mostly Cloudy
    then
    Rain/Snow

  • Saturday

    Saturday: Snow, mainly after 4pm. High near 34. West wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 34 °F

    Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 20. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Slight Chance
    Snow and
    Blustery

  • Sunday

    Sunday: Mostly sunny, with a high near 31. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 31 °F

    Mostly Sunny
    and Blustery
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. Southwest wind 5 to 10 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind around 10 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Southwest wind 10 to 15 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain. Mostly cloudy, with a high near 45. Southwest wind 10 to 15 mph becoming west in the afternoon.

    High: 45 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of rain before 3am, then rain and snow likely between 3am and 5am, then snow after 5am. Low around 30. North wind around 5 mph becoming calm. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow, mainly after 4pm. High near 34. West wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 31. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 23. Southwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 41. West wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 30. Southwest wind 10 to 15 mph.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 45. Southwest wind 10 to 15 mph becoming west in the afternoon.
Tuesday Night
A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 28.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Beloit WI
 42.52°N 89.05°W (Elev. 751 ft)
Last Update:
6:09 pm CST Jan 9, 2026
Forecast Valid:
7pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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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