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Brillion, WI Weather Forecast
Brillion, WI Weather Forecast Date: 122 AM CDT Sun Sep 06 2026
The area/counties/county of: Calumet, including the cities of: Chilton, Brillion, and New Holstein.or toggle through each period.
Rest Of The Night... Cooler. Mostly clear. Nearly steady temperature in the lower 60s. Light and variable wind.
Sunday... Mostly sunny. Highs in the upper 70s. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night... Mostly clear. Lows in the middle 50s. Light and variable wind.
Labor Day... Mostly sunny. Highs in the upper 70s. South wind 5 to 10 mph.
Monday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 60s. Southeast wind 10 to 15 mph.
Tuesday... Humid. Mostly cloudy with a 40% chance of showers and thunderstorms. Highs in the lower 80s.
Tuesday Night... Muggy. Showers and a chance of thunderstorms. Lows in the upper 60s. Chance of rain 90%.
Wednesday... Breezy. Mostly clear. Highs in the upper 70s. Lows in the upper 50s.
Wednesday Night... Breezy. Mostly clear. Highs in the upper 70s. Lows in the upper 50s.
Thursday... Mostly clear. Highs in the middle 70s. Lows in the upper 50s.
Friday... Mostly clear. Highs in the middle 70s. Lows in the upper 50s.
POP = Probability of Precipitation
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