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

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

14°F

-10°C

Humidity 62%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 17 Mar 12:55 am CDT
Extended Forecast for

Hartland WI

  • Overnight

    Overnight: Partly cloudy, with a low around 1. Wind chill values between -5 and -10. Northwest wind around 10 mph.

    Low: 1 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 21. Wind chill values between -5 and -15. Northwest wind 5 to 10 mph.

    High: 21 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely before 1am, then snow, possibly mixed with freezing rain. Low around 16. South wind 5 to 10 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Chance Snow
    then Wintry
    Mix

  • Wednesday

    Wednesday: A 30 percent chance of snow before 7am. Mostly cloudy, with a high near 39. Southwest wind around 10 mph.

    High: 39 °F

    Chance Snow
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Partly sunny, with a high near 45. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Calm wind becoming southwest around 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 49. Southwest wind 5 to 10 mph.

    High: 49 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 1. Wind chill values between -5 and -10. Northwest wind around 10 mph.
Tuesday
Increasing clouds, with a high near 21. Wind chill values between -5 and -15. Northwest wind 5 to 10 mph.
Tuesday Night
Snow likely before 1am, then snow, possibly mixed with freezing rain. Low around 16. South wind 5 to 10 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow before 7am. Mostly cloudy, with a high near 39. Southwest wind around 10 mph.
Wednesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 45. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 32. Calm wind becoming southwest around 5 mph.
Friday
Partly sunny, with a high near 49. Southwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hartland WI
 43.1°N 88.36°W (Elev. 1001 ft)
Last Update:
12:57 am CDT Mar 17, 2026
Forecast Valid:
1am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation