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

23°F

-5°C

Humidity 68%
Wind Speed S 10 G 16 mph
Barometer 30.04 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 8 Dec 11:35 pm CST
Extended Forecast for

Lannon WI

  • Tonight

    Tonight: Snow before 3am, then a chance of snow and freezing rain. Low around 18. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of less than a half inch possible.

    Low: 18 °F

    Wintry Mix

  • Tuesday

    Tuesday: A chance of freezing rain before 8am, then a slight chance of snow after 5pm. Cloudy, with a high near 33. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance
    Freezing Rain
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow before midnight, then rain and snow. Low around 29. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Snow then
    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: Snow likely, mainly before noon. Mostly cloudy, with a temperature falling to around 26 by 5pm. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 31 °F⇓

    Blustery.
    Snow Likely
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 10. Northwest wind 5 to 10 mph.

    Low: 10 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 20. West wind around 5 mph.

    High: 20 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 4. West wind 5 to 10 mph.

    Low: 4 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A 40 percent chance of snow showers. Mostly cloudy, with a high near 19. West wind 10 to 15 mph.

    High: 19 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around -3.

    Low: -3 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Snow before 3am, then a chance of snow and freezing rain. Low around 18. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
A chance of freezing rain before 8am, then a slight chance of snow after 5pm. Cloudy, with a high near 33. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday Night
Snow before midnight, then rain and snow. Low around 29. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow likely, mainly before noon. Mostly cloudy, with a temperature falling to around 26 by 5pm. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 10. Northwest wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 20. West wind around 5 mph.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 4. West wind 5 to 10 mph.
Friday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 19. West wind 10 to 15 mph.
Friday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around -3.
Saturday
Partly sunny and cold, with a high near 5.
Saturday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around -6.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 1.
Monday
A 30 percent chance of snow showers. Mostly cloudy, with a high near 22.
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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:
11:17 pm CST Dec 8, 2025
Forecast Valid:
11pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation