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

27°F

-3°C

Humidity 93%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 13 Feb 3:35 am CST
Extended Forecast for

Sussex WI

  • Overnight

    Overnight: Mostly clear, with a low around 24. South wind around 5 mph.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46. West wind 5 to 10 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 29. West wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 46. Calm wind becoming southeast around 5 mph.

    High: 46 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 48. West wind around 5 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. Calm wind becoming southwest around 5 mph after midnight.

    Low: 34 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 55. Southwest wind 5 to 10 mph.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 24. South wind around 5 mph.
Friday
Sunny, with a high near 46. West wind 5 to 10 mph.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 29. West wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 46. Calm wind becoming southeast around 5 mph.
Saturday Night
Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 48. West wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 34. Calm wind becoming southwest around 5 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 55. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 53.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sussex WI
 43.14°N 88.24°W (Elev. 951 ft)
Last Update:
3:35 am CST Feb 13, 2026
Forecast Valid:
3am CST Feb 13, 2026-6pm CST Feb 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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