Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Current conditions at

Middleton Muni - Morey Field (KC29)

Lat: 43.11°NLon: 89.53°WElev: 928ft.

Fair

-1°F

-18°C

Humidity 70%
Wind Speed W 3 mph
Barometer 30.26 in
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Last update 20 Jan 1:15 am CST
Extended Forecast for

Prairie du Sac WI

  • Overnight

    Overnight: Mostly clear, with a low around -4. Wind chill values between -10 and -15. West wind around 5 mph.

    Low: -4 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 15. Wind chill values between -5 and -15. Southwest wind 5 to 10 mph.

    High: 15 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow, mainly after 8pm.  Low around 11. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 11 °F

    Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon.  Mostly cloudy, with a high near 24. Light northwest wind becoming west 5 to 10 mph in the morning.

    High: 24 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow before midnight.  Mostly cloudy, with a low around 5. West wind 10 to 15 mph.

    Low: 5 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 15. West wind 10 to 15 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -14. Northwest wind 5 to 10 mph.

    Low: -14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -4. Northwest wind 5 to 10 mph.

    High: -4 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -15.

    Low: -15 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around -4. Wind chill values between -10 and -15. West wind around 5 mph.
Tuesday
Increasing clouds, with a high near 15. Wind chill values between -5 and -15. Southwest wind 5 to 10 mph.
Tuesday Night
Snow, mainly after 8pm. Low around 11. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 24. Light northwest wind becoming west 5 to 10 mph in the morning.
Wednesday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 5. West wind 10 to 15 mph.
Thursday
Mostly sunny, with a high near 15. West wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around -14. Northwest wind 5 to 10 mph.
Friday
Mostly sunny and cold, with a high near -4. Northwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around -15.
Saturday
Mostly sunny and cold, with a high near 1.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around -9.
Sunday
Mostly sunny, with a high near 12.
Sunday Night
Partly cloudy, with a low around -5.
Monday
Mostly sunny, with a high near 15.
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ABOUT THIS FORECAST

 
Point Forecast:
Prairie du Sac WI
 43.3°N 89.71°W (Elev. 797 ft)
1:17 am CST Jan 20, 2026
1am CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database