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.

Fog/Mist

45°F

7°C

Humidity 87%
Wind Speed S 6 mph
Barometer 30.07 in
Dewpoint 41°F (5°C)
Visibility 5.00 mi
Wind Chill42°F (6°C)
Last update 20 Nov 10:45 am CST
Extended Forecast for

Lannon WI

  • Today

    Today: Patchy fog before noon. Otherwise, cloudy, with a high near 45. Southwest wind 5 to 10 mph.

    High: 45 °F

    Patchy Fog

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. West wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47. Northwest wind around 5 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. North wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Calm wind becoming southwest around 5 mph in the morning.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. West wind 5 to 10 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54. West wind 5 to 10 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. West wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after noon. Partly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Today
Patchy fog before noon. Otherwise, cloudy, with a high near 45. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 35. West wind around 5 mph.
Friday
Mostly sunny, with a high near 47. Northwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 27. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 47. Calm wind becoming southwest around 5 mph in the morning.
Saturday Night
Partly cloudy, with a low around 36. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 54. West wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 32. West wind around 5 mph.
Monday
A 20 percent chance of rain after noon. Partly sunny, with a high near 52.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 50.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lannon WI
 43.14°N 88.18°W (Elev. 912 ft)
Last Update:
11:12 am CST Nov 20, 2025
Forecast Valid:
11am CST Nov 20, 2025-6pm CST Nov 26, 2025
 
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