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 >

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Light Snow

14°F

-10°C

Humidity 85%
Wind Speed W 12 mph
Barometer 29.78 in
Dewpoint 10°F (-12°C)
Visibility 7.00 mi
Wind Chill0°F (-18°C)
Last update 18 Jan 10:55 pm CST
Extended Forecast for

Hartland WI

Winter Weather Advisory January 18, 11:10pm until January 19, 12:00pm
Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Cold Weather Advisory
  •  
    Winter Weather Advisory January 18, 11:10pm until January 19, 12:00pm

    NOW until 12:00pm Mon

    Winter Weather Advisory

  • Tonight

    Low: -3 °F

    Snow Likely
    and Areas
    Blowing Snow

  • M.L.King Day

    M.L.King Day: A 20 percent chance of snow before 7am.  Areas of blowing snow before 1pm. Partly sunny and cold, with a high near 3. Wind chill values between -15 and -25. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 3 °F

    Slight Chance
    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. Wind chill values between -10 and -15. West wind 5 to 10 mph.

    Low: -4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 13. Wind chill values between -5 and -15. West wind 5 to 10 mph.

    High: 13 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight.  Mostly cloudy, with a temperature rising to around 17 by 4am. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 10 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before noon.  Mostly cloudy, with a high near 22. West wind 5 to 10 mph.

    High: 22 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 4. West wind around 10 mph.

    Low: 4 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 11. West wind 10 to 15 mph.

    High: 11 °F

    Partly Sunny

Detailed Forecast

Tonight
Snow likely, mainly before midnight. Areas of blowing snow after 1am. Mostly cloudy, with a low around -3. Wind chill values between -10 and -20. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.
M.L.King Day
A 20 percent chance of snow before 7am. Areas of blowing snow before 1pm. Partly sunny and cold, with a high near 3. Wind chill values between -15 and -25. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
Partly cloudy, with a low around -4. Wind chill values between -10 and -15. West wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 13. Wind chill values between -5 and -15. West wind 5 to 10 mph.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a temperature rising to around 17 by 4am. Southwest wind around 5 mph becoming calm. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 22. West wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 4. West wind around 10 mph.
Thursday
Partly sunny, with a high near 11. West wind 10 to 15 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -2.
Friday
A 20 percent chance of snow. Partly sunny and cold, with a high near 10.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around -9.
Saturday
A 30 percent chance of snow. Mostly sunny and cold, with a high near 3.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around -10.
Sunday
A 30 percent chance of snow. Partly sunny and cold, with a high near 7.
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ABOUT THIS FORECAST

 
Point Forecast:
Hartland WI
 43.1°N 88.36°W (Elev. 1001 ft)
10:57 pm CST Jan 18, 2026
11pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database