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

54°F

12°C

Humidity 44%
Wind Speed W 5 mph
Barometer 29.96 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 14 Feb 1:45 pm CST
Extended Forecast for

Merton WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 51. Calm wind.

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Calm wind becoming south around 5 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 48. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 31. Calm wind becoming south around 5 mph after midnight.

    Low: 31 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 57. Southwest wind 5 to 15 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. West wind around 5 mph becoming east in the evening.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 49. East wind 5 to 10 mph.

    High: 49 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 42. East wind 10 to 15 mph becoming south after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Rain Likely

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly before noon. Mostly sunny, with a high near 59.

    High: 59 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 51. Calm wind.
Tonight
Partly cloudy, with a low around 31. Calm wind becoming south around 5 mph.
Sunday
Sunny, with a high near 48. Northwest wind around 5 mph becoming calm in the afternoon.
Sunday Night
Increasing clouds, with a low around 31. Calm wind becoming south around 5 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 57. Southwest wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 35. West wind around 5 mph becoming east in the evening.
Tuesday
Mostly cloudy, with a high near 49. East wind 5 to 10 mph.
Tuesday Night
A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 42. East wind 10 to 15 mph becoming south after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 40 percent chance of rain, mainly before noon. Mostly sunny, with a high near 59.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of rain and snow. Partly cloudy, with a low around 32. Chance of precipitation is 20%.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 45.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.32°W (Elev. 958 ft)
Last Update:
2:18 pm CST Feb 14, 2026
Forecast Valid:
2pm CST Feb 14, 2026-6pm CST Feb 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation