Keller Weather Forecast

    • 58
    • 84

    Mostly Sunny

    • 58
    • 86

    Mostly Sunny

    • 58
    • 83

    Partly Sunny

    • 47
    • 72

    Mostly Sunny

    • 51
    • 71

    Mostly Sunny

    • 55
    • 78

    Partly Sunny

    • 54
    • 80

    Slight Chance Rain Showers

Today 18 Sep Okanogan Highlands

Sunny. Highs in the 80s.

Tonight 18 Sep Okanogan Highlands

Mostly clear. Lows in the upper 40s to upper 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Keller Temperature Statistics

September Temperature

Omak Airport (46.6 miles)

  • Lowest 16 September, 2025

    51.1 °F

  • Average September

    74 °F

  • Highest 3 September, 2025

    104 °F

Climate (2020–Present)

Omak Airport (46.6 miles)

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  • Average Low 2020–2025

    40.7 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    62.7 °F
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