53178 Weather (Oconomowoc, WI)

Weather forecast for: Oconomowoc WI

Last Update: 6:16 am CDT Sep 5, 2026

Today: Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 80. Light northeast wind increasing to 5 to 10 mph in the morning.

Tonight: Mostly clear, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.

Sunday: Mostly sunny, with a high near 79. Calm wind becoming east around 5 mph in the afternoon.

Sunday Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming calm.

Labor Day: Mostly sunny, with a high near 79. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

Monday Night: Mostly cloudy, with a low around 61. Southeast wind around 5 mph.

Tuesday: Partly sunny, with a high near 84. South wind 5 to 10 mph.

Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. South wind 10 to 15 mph.

Wednesday: Partly sunny, with a high near 83.

Wednesday Night: Partly cloudy, with a low around 59.

Thursday: Mostly sunny, with a high near 77.

Thursday Night: Partly cloudy, with a low around 57.

Friday: Mostly sunny, with a high near 80.