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Village of Lannon, WILannon, WI 7-Day Night Weather Forecast
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Lannon, WI Weather Forecast
Lannon, WI Weather Forecast Date: 431 PM CDT Tue Oct 13 2026
The area/counties/county of: Waukesha, including the cities of: Waukesha, Brookfield, New Berlin, Menomonee Falls, and Muskego.or toggle through each period.
Late This Afternoon... Sunny. West winds 5 to 10 mph.
Tonight... Cooler. Mostly clear with chance of light rain showers in the evening, then mostly cloudy with chance of light rain showers and slight chance of thunderstorms late in the evening. Mostly cloudy after midnight. Lows in the mid 50s. North winds up to 5 mph. Chance of precipitation 40%.
Wednesday... Cooler. Mostly cloudy. Highs in the mid 60s. Northeast winds 5 to 10 mph.
Wednesday Night... Mostly cloudy. A 30% chance of light rain showers early in the morning. Lows in the lower 50s. Northeast winds 5 to 10 mph.
Thursday... Rain showers. Highs around 60. East winds 5 to 10 mph. Chance of showers 90%.
Thursday Night... Mostly cloudy. Light rain showers likely through around midnight. Lows in the lower 40s. North winds up to 10 mph increasing to northwest 15 to 20 mph after midnight. Chance of showers 70%.
Friday... Partly sunny. Windy. Highs in the mid 50s.
Friday Night... Partly cloudy through around midnight then becoming clear. Colder. Widespread frost after midnight. Lows in the lower 30s.
Saturday... Sunny. Widespread frost in the morning. Highs in the upper 50s.
Saturday Night... Clear. Lows in the upper 30s.
Sunday... Sunny. Highs in the mid 60s.
Sunday Night... Partly cloudy. Lows in the mid 40s.
Monday... Partly sunny. Highs in the mid 60s.
Monday Night... Mostly cloudy through around midnight then becoming partly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
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