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Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

52°F

11°C

Humidity 54%
Wind Speed SW 6 mph
Barometer 29.60 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 4 May 4:55 am CDT
Extended Forecast for

Sullivan WI

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 78. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 78 °F

    Sunny then
    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A chance of rain and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 42. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Northwest wind 5 to 10 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 7am. Otherwise, partly sunny, with a high near 55. Northwest wind 5 to 10 mph.

    High: 55 °F

    Areas Frost
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Thursday

    Thursday: Areas of frost before 7am. Otherwise, mostly sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning.

    High: 57 °F

    Areas Frost
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 38. West wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 78. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
A chance of rain and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 42. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 57. Northwest wind 5 to 10 mph.
Tuesday Night
Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 55. Northwest wind 5 to 10 mph.
Wednesday Night
Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning.
Thursday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 38. West wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 65.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 43.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan WI
 43.02°N 88.6°W (Elev. 846 ft)
Last Update:
5:06 am CDT May 4, 2026
Forecast Valid:
5am CDT May 4, 2026-6pm CDT May 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation