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.

Mostly Cloudy

41°F

5°C

Humidity 87%
Wind Speed NW 14 G 22 mph
Barometer 30.00 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 9 Jan 11:45 am CST
Extended Forecast for

Edgerton WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 41. Northwest wind 5 to 15 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 4am. Increasing clouds, with a low around 28. Northwest wind around 5 mph becoming calm.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 34. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Snow Likely
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 20. West wind around 15 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 31 °F

    Decreasing
    Clouds

  • 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 31. Southwest wind 10 to 15 mph.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 41. Northwest wind 5 to 15 mph.
Tonight
A 50 percent chance of snow, mainly after 4am. Increasing clouds, with a low around 28. Northwest wind around 5 mph becoming calm.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 34. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20. West wind around 15 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 10 to 15 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 31. Southwest wind 10 to 15 mph.
Tuesday
A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 43.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 32.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edgerton WI
 42.82°N 89.09°W (Elev. 912 ft)
Last Update:
12:09 pm CST Jan 9, 2026
Forecast Valid:
12pm CST Jan 9, 2026-6pm CST Jan 15, 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