Weather forecast for: Brillion WI
Last Update: 3:26 pm CDT Sep 5, 2026
Tonight: Mostly clear, with a low around 56. East northeast wind 5 to 7 mph becoming calm in the evening.
Sunday: Mostly sunny, with a high near 77. East southeast wind 3 to 6 mph.
Sunday Night: Partly cloudy, with a low around 55. Light east southeast wind.
Labor Day: Mostly sunny, with a high near 79. Calm wind becoming south southeast 5 to 9 mph in the morning.
Monday Night: Mostly cloudy, with a low around 61. South southeast wind around 7 mph.
Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 81.
Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Wednesday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 81.
Wednesday Night: Partly cloudy, with a low around 57.
Thursday: Mostly sunny, with a high near 75.
Thursday Night: Mostly clear, with a low around 54.
Friday: Sunny, with a high near 77.
Friday Night: A 20 percent chance of showers. Partly cloudy, with a low around 58.
Saturday: Mostly sunny, with a high near 79.