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.

Overcast

41°F

5°C

Humidity 53%
Wind Speed W 12 mph
Barometer 30.09 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Apr 8:45 am CDT
Extended Forecast for

Sussex WI

  • Today

    Today: A slight chance of rain and snow showers before 1pm, then scattered sprinkles between 1pm and 4pm. Mostly cloudy, with a high near 45. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 45 °F

    Isolated
    Rain/Snow
    then Isolated
    Showers

  • Tonight

    Tonight: Widespread frost after 1am. Otherwise, partly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 28 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 52. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 52 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. South wind around 10 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 71. Southwest wind 5 to 10 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Northeast wind around 5 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. South wind around 5 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of rain and snow showers before 1pm, then scattered sprinkles between 1pm and 4pm. Mostly cloudy, with a high near 45. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.
Tonight
Widespread frost after 1am. Otherwise, partly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 52. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 39. South wind around 10 mph.
Tuesday
Sunny, with a high near 71. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 42. Northeast wind around 5 mph.
Wednesday
Sunny, with a high near 68. Northeast wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sussex WI
 43.14°N 88.24°W (Elev. 951 ft)
Last Update:
8:32 am CDT Apr 19, 2026
Forecast Valid:
9am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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