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

50°F

10°C

Humidity 67%
Wind Speed SW 10 mph
Barometer 29.97 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 9 Nov 8:15 pm CST
Extended Forecast for

Sullivan WI

  • Tonight

    Tonight: Clear, with a low around 36. Southwest wind 5 to 10 mph becoming northwest after midnight.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Northwest wind around 5 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 37. West wind around 5 mph becoming calm.

    Low: 37 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Veterans Day

    Veterans Day: Rain likely, mainly between noon and 3pm. Mostly cloudy, with a high near 52. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 33. North wind 5 to 15 mph.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Mostly cloudy, with a high near 43. North wind around 15 mph, with gusts as high as 30 mph.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27. North wind 5 to 15 mph.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41. North wind 5 to 10 mph.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 36. Southwest wind 5 to 10 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 60. Northwest wind around 5 mph.
Tuesday Night
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 37. West wind around 5 mph becoming calm.
Veterans Day
Rain likely, mainly between noon and 3pm. Mostly cloudy, with a high near 52. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 33. North wind 5 to 15 mph.
Thursday
A 20 percent chance of rain before noon. Mostly cloudy, with a high near 43. North wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 27. North wind 5 to 15 mph.
Friday
Mostly sunny, with a high near 41. North wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 44.
Saturday Night
Mostly clear, with a low around 28.
Sunday
A 20 percent chance of rain. Sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan WI
 43°N 88.6°W (Elev. 846 ft)
Last Update:
8:31 pm CST Nov 9, 2026
Forecast Valid:
8pm CST Nov 9, 2026-6pm CST Nov 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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