Johnson Lake Weather Forecast

    • 50
    • 77

    Partly Sunny

    • 54
    • 71

    Mostly Cloudy

    • 50
    • 70

    Chance Rain Showers

    • 47
    • 65

    Slight Chance Rain Showers

    • 47
    • 67

    Partly Sunny

    • 49
    • 71

    Partly Sunny

Today 10 Sep Okanogan Valley

Mostly cloudy. Highs in the mid 70s to lower 80s. Gusts up to 20 Mph in the afternoon.

Tonight 10 Sep Okanogan Valley

Partly cloudy. Lows in the upper 40s to lower 50s. Northwest wind 5 to 15 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Lake Temperature Statistics

September Temperature

Omak Airport (30.4 miles)

  • Lowest 6 September, 2026

    46.7 °F

  • Average September

    63.8 °F

  • Highest 1 September, 2026

    83.6 °F

Climate (2021–2026)

Omak Airport (30.4 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.9 °F
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