Brest Bay Weather Forecast
- 75
- 82
Chance Rain Showers
- 77
- 86
Partly Sunny
- 75
- 88
Chance Thunderstorms
- 70
- 82
Chance Thunderstorms
- 67
- 80
Slight Chance Thunderstorms
- 65
- 78
Partly Sunny
Today 31 Aug Monroe
Partly Cloudy, then becoming cloudy early in the Afternoon, then becoming partly cloudy. A chance of Showers and a slight chance of Thunderstorms until late afternoon. Highs in the mid 80s. Southwest Winds 5 to 15 Mph. Chance of rain 40 percent. Heat index Readings heat index Values up to 90.
Tonight 31 Aug Monroe
Partly cloudy. Lows in the lower 70s. Southwest Winds 5 to 10 Mph.
Brest Bay Temperature Statistics
August Temperature
Monroe, Custer Airport (6.8 miles)
Lowest 24 August, 2026
51.8 °FAverage August
71.4 °FHighest 8 August, 2026
89.6 °F
Climate (2021–2026)
Monroe, Custer Airport (6.8 miles)
Average Low 2021–2026
42.1 °FAverage 2021–2026
51.4 °FAverage High 2021–2026
60.3 °F