Brewster Weather Forecast
- 64
- 85
Increasing Clouds
- 62
- 84
Partly Sunny
- 65
- 87
Partly Sunny
- 65
- 89
Mostly Cloudy
- 65
- 90
Mostly Cloudy
- 64
- 88
Slight Chance Rain Showers
Today 13 Aug Okanogan Valley
Sunny. Haze and Areas of smoke in the morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s to mid 80s. Gusts up to 20 Mph in the morning. Chance of precipitation 20 percent.
Tonight 13 Aug Okanogan Valley
Partly cloudy. Lows in the mid 50s to lower 60s.
Brewster Temperature Statistics
August Temperature
Omak Airport (27.3 miles)
Lowest 3 August, 2026
50.6 °FAverage August
72.9 °FHighest 6 August, 2026
95.6 °F
Climate (2021–2026)
Omak Airport (27.3 miles)
Average Low 2021–2026
40.7 °FAverage 2021–2026
51.8 °FAverage High 2021–2026
62.9 °F