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

Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Overcast

18°F

-8°C

Humidity 73%
Wind Speed W 13 G 17 mph
Barometer 29.98 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 18 Jan 1:15 am CST
Extended Forecast for

Hartland WI

  • Overnight

    Overnight: A slight chance of snow before 3am, then a chance of flurries between 3am and 4am. Mostly cloudy, with a low around 6. Wind chill values between -5 and zero. West wind around 10 mph. Chance of precipitation is 20%.

    Low: 6 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Snow, mainly after noon. High near 16. Wind chill values between -10 and zero. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 16 °F

    Mostly Cloudy
    then Snow

  • Sunday Night

    Sunday Night: Snow, mainly before midnight. Low around -1. Wind chill values between -10 and -20. Windy, with a northwest wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: -1 °F

    Snow and
    Breezy then
    Slight Chance
    Snow and
    Windy

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 3. Wind chill values between -15 and -25. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 3 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. West wind 5 to 10 mph.

    Low: -4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 15. West wind 5 to 10 mph.

    High: 15 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a temperature rising to around 18 by 4am. South wind around 5 mph. Chance of precipitation is 60%.

    Low: 12 °F⇑

    Snow Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow. Mostly cloudy, with a high near 22. West wind 5 to 15 mph.

    High: 22 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 3am, then a chance of flurries between 3am and 4am. Mostly cloudy, with a low around 6. Wind chill values between -5 and zero. West wind around 10 mph. Chance of precipitation is 20%.
Sunday
Snow, mainly after noon. High near 16. Wind chill values between -10 and zero. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
Snow, mainly before midnight. Low around -1. Wind chill values between -10 and -20. Windy, with a northwest wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
M.L.King Day
Mostly sunny and cold, with a high near 3. Wind chill values between -15 and -25. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
Partly cloudy, with a low around -4. West wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 15. West wind 5 to 10 mph.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a temperature rising to around 18 by 4am. South wind around 5 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 22. West wind 5 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 3.
Thursday
Partly sunny, with a high near 14.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 4.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 19.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -2.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 11.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hartland WI
 43.1°N 88.36°W (Elev. 1001 ft)
Last Update:
12:21 am CST Jan 18, 2026
Forecast Valid:
1am CST Jan 18, 2026-6pm CST Jan 24, 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