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

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

46°F

8°C

Humidity 57%
Wind Speed NE 8 mph
Barometer 30.34 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 21 May 1:35 am CDT
Extended Forecast for

Hartland WI

  • Overnight

    Overnight: Partly cloudy, with a low around 41. Northeast wind around 10 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of sprinkles after 10am. Increasing clouds, with a high near 55. East wind around 10 mph.

    High: 55 °F

    Slight Chance
    Sprinkles

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. East wind around 10 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 63. East wind 10 to 15 mph.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Cloudy, with a low around 48. East wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 69. Northeast wind around 5 mph becoming northwest in the afternoon.

    High: 69 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 41. Northeast wind around 10 mph.
Thursday
A slight chance of sprinkles after 10am. Increasing clouds, with a high near 55. East wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 44. East wind around 10 mph.
Friday
Partly sunny, with a high near 63. East wind 10 to 15 mph.
Friday Night
Showers likely, mainly after 1am. Cloudy, with a low around 48. East wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 69. Northeast wind around 5 mph becoming northwest in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 52.
Memorial Day
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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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:
1:21 am CDT May 21, 2026
Forecast Valid:
1am CDT May 21, 2026-6pm CDT May 27, 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