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

32°F

0°C

Humidity 87%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 15 Feb 12:35 am CST
Extended Forecast for

Merton WI

  • Overnight

    Overnight: Partly cloudy, with a low around 30. West wind around 5 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 51. West wind around 5 mph becoming calm in the afternoon.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 33. Calm wind becoming south around 5 mph after midnight.

    Low: 33 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 58. South wind 5 to 15 mph becoming west in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Monday Night

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

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 46. East wind 5 to 15 mph.

    High: 46 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain. Low around 41. Southeast wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly before noon. Mostly sunny, with a high near 58. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 58 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 30. West wind around 5 mph.
Sunday
Sunny, with a high near 51. West wind around 5 mph becoming calm in the afternoon.
Sunday Night
Increasing clouds, with a low around 33. Calm wind becoming south around 5 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 58. South wind 5 to 15 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 34. Calm wind becoming east around 5 mph after midnight.
Tuesday
Mostly cloudy, with a high near 46. East wind 5 to 15 mph.
Tuesday Night
Rain. Low around 41. Southeast wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 40 percent chance of rain, mainly before noon. Mostly sunny, with a high near 58. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 32.
Thursday
A slight chance of rain and snow after noon. Mostly sunny, with a high near 45. Chance of precipitation is 20%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 35.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.32°W (Elev. 958 ft)
Last Update:
12:42 am CST Feb 15, 2026
Forecast Valid:
1am CST Feb 15, 2026-6pm CST Feb 21, 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