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 30.10 in
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Last update 10 Jan 12:30 am CST
Extended Forecast for

2 Miles NE Darien WI

  • Overnight

    Overnight: A chance of rain before 4am, then rain and snow between 4am and 5am, then snow after 5am. Low around 31. East wind around 5 mph becoming southwest. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow

  • Saturday

    Saturday: Snow before 1pm, then a chance of snow after 4pm. High near 34. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow, mainly before 3am. 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

    Chance Snow
    and Blustery

  • Sunday

    Sunday: Partly sunny, with a high near 30. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 30 °F

    Partly Sunny
    and Blustery
    then 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: Sunny, with a high near 38. West wind around 10 mph.

    High: 38 °F

    Sunny

  • Monday Night

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

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain. Partly sunny, with a high near 44. West wind around 15 mph.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow, mainly after midnight. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.

    Low: 25 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
A chance of rain before 4am, then rain and snow between 4am and 5am, then snow after 5am. Low around 31. East wind around 5 mph becoming southwest. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
Snow before 1pm, then a chance of snow after 4pm. High near 34. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A 50 percent chance of snow, mainly before 3am. Mostly cloudy, with a low around 20. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Partly sunny, with a high near 30. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 22. Southwest wind 5 to 10 mph.
Monday
Sunny, with a high near 38. West wind around 10 mph.
Monday Night
Increasing clouds, with a low around 30. Southwest wind 10 to 15 mph.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 44. West wind around 15 mph.
Tuesday Night
A chance of rain and snow, mainly after midnight. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of snow. Mostly cloudy, with a high near 30.
Wednesday Night
A 20 percent chance of snow. Partly cloudy, with a low around 13.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 28.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Darien WI
 42.61°N 88.68°W (Elev. 945 ft)
Last Update:
12:47 am CST Jan 10, 2026
Forecast Valid:
12am CST Jan 10, 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