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 and Windy

-20°F

-29°C

Humidity 83%
Wind Speed SW 29 G 33 mph
Barometer 29.35 in
Dewpoint -24°F (-31°C)
Visibility 10.00 mi
Wind Chill-53°F (-47°C)
Last update 9 Jan 2:10 am CST
Extended Forecast for

5 Miles WSW Fort Atkinson WI

  • Overnight

    Overnight: A 40 percent chance of rain, mainly after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 38 °F

    Chance Rain
    and Patchy
    Fog

  • Friday

    Friday: A 40 percent chance of rain before 8am. Patchy fog before 9am. Otherwise, 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 35 mph.

    High: 41 °F

    Chance Rain
    and Patchy
    Fog then
    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after 4am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 28. Northwest wind around 5 mph becoming calm.

    Low: 28 °F

    Partly Cloudy
    then Chance
    Snow and
    Patchy Fog

  • Saturday

    Saturday: Snow likely. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 33 °F

    Snow Likely
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: A 40 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

    Chance Snow
    and Blustery

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 31. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 31 °F

    Partly Sunny
    and Blustery
    then Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Southwest wind 10 to 15 mph.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. Southwest wind 10 to 15 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain, mainly after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Friday
A 40 percent chance of rain before 8am. Patchy fog before 9am. Otherwise, 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 35 mph.
Friday Night
A 40 percent chance of snow, mainly after 4am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 28. Northwest wind around 5 mph becoming calm.
Saturday
Snow likely. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday Night
A 40 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 cloudy, then gradually becoming sunny, with a high near 31. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 23. Southwest wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 40. Southwest wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 32.
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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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Fort Atkinson WI
 42.88°N 88.93°W (Elev. 774 ft)
Last Update:
2:12 am CST Jan 9, 2026
Forecast Valid:
2am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation