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.

Overcast

63°F

17°C

Humidity 73%
Wind Speed SE 6 mph
Barometer 30.26 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 1 Nov 3:45 pm CST
Extended Forecast for

Sussex WI

  • Tonight

    Tonight: Isolated sprinkles between 11pm and midnight, then patchy drizzle after midnight. Increasing clouds, with a low around 52. South wind around 5 mph.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Drizzle

  • Monday

    Monday: A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 64. South wind 5 to 10 mph.

    High: 64 °F

    Chance Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly after 5am. Cloudy, with a low around 57. South wind 10 to 15 mph.

    Low: 57 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain before noon, then rain and possibly a thunderstorm between noon and 3pm, then rain after 3pm. High near 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Breezy.
    Chance Rain
    then Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 55. South wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before noon. Mostly cloudy, with a high near 62. South wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 47. Southwest wind 5 to 10 mph.

    Low: 47 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 58. West wind 5 to 10 mph.

    High: 58 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Isolated sprinkles between 11pm and midnight, then patchy drizzle after midnight. Increasing clouds, with a low around 52. South wind around 5 mph.
Monday
A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 64. South wind 5 to 10 mph.
Monday Night
A 50 percent chance of rain, mainly after 5am. Cloudy, with a low around 57. South wind 10 to 15 mph.
Tuesday
A chance of rain before noon, then rain and possibly a thunderstorm between noon and 3pm, then rain after 3pm. High near 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain. Low around 55. South wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain likely, mainly before noon. Mostly cloudy, with a high near 62. South wind 10 to 15 mph. Chance of precipitation is 70%. 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 47. Southwest wind 5 to 10 mph.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 58. West wind 5 to 10 mph.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 42.
Friday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 52.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sussex WI
 43.14°N 88.21°W (Elev. 968 ft)
Last Update:
2:31 pm CST Nov 1, 2026
Forecast Valid:
4pm CST Nov 1, 2026-6pm CST Nov 8, 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