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 Breezy

-20°F

-29°C

Humidity 83%
Wind Speed SW 23 G 31 mph
Barometer 29.34 in
Dewpoint -24°F (-31°C)
Visibility 10.00 mi
Wind Chill-50°F (-46°C)
Last update 9 Jan 1:50 am CST
Extended Forecast for

Edgerton 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 around 20 mph becoming west. Winds could gust 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 8am. 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. North wind around 5 mph becoming calm.

    Low: 28 °F

    Partly Cloudy
    then Chance
    Snow and
    Patchy Fog

  • Saturday

    Saturday: Snow likely, mainly before noon. 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 60%. New snow accumulation of less than one 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. Northwest 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 25 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. Southwest wind around 10 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °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 around 20 mph becoming west. Winds could gust as high as 35 mph.
Friday
A 40 percent chance of rain before 8am. Patchy fog before 8am. 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. North wind around 5 mph becoming calm.
Saturday
Snow likely, mainly before noon. 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 60%. New snow accumulation of less than one inch possible.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20. Northwest 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 25 mph.
Sunday Night
Partly cloudy, with a low around 23. Southwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 41. Southwest wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 31.
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
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ABOUT THIS FORECAST

 
Point Forecast:
Edgerton WI
 42.82°N 89.06°W (Elev. 869 ft)
Last Update:
1:37 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

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