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

Tracking Two Storms Impacting the Central and Eastern U.S. Through This Weekend

Two storm systems will track through the central and eastern U.S. through this weekend with areas of gusty winds, rain, and heavy snow. Severe thunderstorms are forecast Friday from the central Gulf Coast into parts of the lower Mississippi, Tennessee and Ohio Valleys. Heavy to excessive rainfall is forecast from the lower Mississippi River Valley to the Tennessee Valley which may bring flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

55°F

13°C

Humidity 94%
Wind Speed S 12 G 17 mph
Barometer 29.38 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 8 Jan 7:45 pm CST
Extended Forecast for

5 Miles WSW Fort Atkinson WI

  • Tonight

    Tonight: Rain and thunderstorms likely before 11pm, then rain and possibly a thunderstorm between 11pm and midnight, then a chance of rain after midnight. Low around 37. Breezy, with a southeast wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. 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 50 percent chance of rain, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 41. 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: 41 °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 28. Northwest wind around 5 mph becoming calm.

    Low: 28 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday

    Saturday: Snow likely. Mostly cloudy, with a high near 34. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 34 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Snow Likely
    and Blustery

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 30. Blustery, with a northwest wind 10 to 20 mph.

    High: 30 °F

    Partly Sunny
    and Blustery
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 21. Southwest wind 5 to 15 mph.

    Low: 21 °F

    Increasing
    Clouds

  • 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: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain and thunderstorms likely before 11pm, then rain and possibly a thunderstorm between 11pm and midnight, then a chance of rain after midnight. Low around 37. Breezy, with a southeast wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of rain, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 41. 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 28. Northwest wind around 5 mph becoming calm.
Saturday
Snow likely. Mostly cloudy, with a high near 34. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday Night
Snow likely. Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 30. Blustery, with a northwest wind 10 to 20 mph.
Sunday Night
Increasing clouds, with a low around 21. Southwest wind 5 to 15 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 38. Southwest wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 40.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. 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 16.
Thursday
Partly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Fort Atkinson WI
 42.88°N 88.93°W (Elev. 774 ft)
Last Update:
7:52 pm CST Jan 8, 2026
Forecast Valid:
8pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation