53046 Weather (Lannon, WI)

Weather forecast for: Lannon WI

Last Update: 9:31 am CDT Oct 12, 2026

Columbus Day: Mostly sunny, with a high near 84. Southwest wind 10 to 15 mph.

Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly clear, with a low around 67. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Tuesday: Sunny, with a high near 77. West wind 5 to 15 mph.

Tuesday Night: A 30 percent chance of showers. Increasing clouds, with a low around 56. Calm wind.

Wednesday: Mostly cloudy, with a high near 66. Northeast wind 5 to 10 mph.

Wednesday Night: Mostly cloudy, with a low around 51. Northeast wind around 5 mph.

Thursday: Showers likely. Mostly cloudy, with a high near 63. East wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 45. Northeast wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 30 mph.

Friday: Mostly sunny, with a high near 55. Windy.

Friday Night: Mostly clear, with a low around 34.

Saturday: Sunny, with a high near 54.

Saturday Night: Mostly clear, with a low around 38.

Sunday: Sunny, with a high near 61. Breezy.