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.

Overcast

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Last update 9 Jan 11:30 pm CST
Extended Forecast for

6 Miles SSE Rockdale WI

  • Tonight

    Tonight: Snow, possibly mixed with rain, mainly after 3am. Low around 30. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow

  • Saturday

    Saturday: Snow before 1pm, then a chance of snow after 3pm. High near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 33 °F

    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow between 1am and 5am. Mostly cloudy, with a low around 21. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 21 °F

    Chance Snow
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22. Southwest wind 5 to 10 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. West wind around 10 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Southwest wind 5 to 15 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 45. West wind 10 to 15 mph.

    High: 45 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.

    Low: 25 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Snow, possibly mixed with rain, mainly after 3am. Low around 30. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow before 1pm, then a chance of snow after 3pm. High near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Saturday Night
A 50 percent chance of snow between 1am and 5am. Mostly cloudy, with a low around 21. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 22. Southwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 40. West wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 29. Southwest wind 5 to 15 mph.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 45. West wind 10 to 15 mph.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 27.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 30.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Rockdale WI
 42.91°N 88.99°W (Elev. 850 ft)
Last Update:
11:37 pm CST Jan 9, 2026
Forecast Valid:
11pm CST Jan 9, 2026-6pm CST Jan 16, 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