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Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

70°F

21°C

Humidity 64%
Wind Speed SE 8 mph
Barometer 29.86 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 11:45 am CDT
Extended Forecast for

Hartland WI

Flood Watch April 17, 01:00pm until April 18, 07:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. High near 77. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could be severe. Low around 39. Breezy, with a south wind 10 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 39 °F

    Severe
    Thunderstorms
    then Showers
    and Breezy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind 5 to 15 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 47. Northwest wind 5 to 15 mph.

    High: 47 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Northwest wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind around 10 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. High near 77. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could be severe. Low around 39. Breezy, with a south wind 10 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 30. West wind 5 to 15 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 47. Northwest wind 5 to 15 mph.
Sunday Night
Mostly clear, with a low around 28. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 54. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 41. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 73.
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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:
11:07 am CDT Apr 17, 2026
Forecast Valid:
11am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation