Brewster Weather Forecast

    • 61
    • 84

    Decreasing Clouds

    • 64
    • 88

    Mostly Sunny

    • 62
    • 85

    Partly Sunny

    • 62
    • 85

    Slight Chance Rain Showers

    • 62
    • 85

    Chance Rain Showers

    • 62
    • 83

    Chance Rain Showers

    • 62
    • 83

    Slight Chance Rain Showers

Today 9 Sep Okanogan Valley

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the upper 70s to mid 80s. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 9 Sep Okanogan Valley

Mostly clear. Lows in the mid 50s to lower 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brewster Temperature Statistics

September Temperature

Omak Airport (27.3 miles)

  • Lowest 6 September, 2025

    57.9 °F

  • Average September

    79.8 °F

  • Highest 3 September, 2025

    104 °F

Climate (2020–Present)

Omak Airport (27.3 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    62.7 °F
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