Similkameen River Weather Forecast

    • 49
    • 72

    Mostly Cloudy

    • 43
    • 75

    Partly Sunny

    • 38
    • 61

    Windy

    • 39
    • 63

    Mostly Sunny

    • 42
    • 66

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

Today 5 Apr Okanogan Valley

Mostly cloudy. Highs in the mid 60s to lower 70s.

Tonight 5 Apr Okanogan Valley

Mostly cloudy. Lows in the mid to upper 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Similkameen River Temperature Statistics

April Temperature

Omak Airport (31.1 miles)

  • Lowest 1 April, 2026

    31.6 °F

  • Average April

    44.2 °F

  • Highest 3 April, 2026

    59 °F

Climate (2021–Present)

Omak Airport (31.1 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    63 °F
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