Mattawa Weather Forecast

    • 44
    • 60

    Chance Rain

    • 39
    • 58

    Chance Rain

    • 38
    • 56

    Partly Sunny

    • 44
    • 59

    Mostly Cloudy

    • 46
    • 64

    Mostly Cloudy

    • 42
    • 64

    Mostly Cloudy

    • 34
    • 55

    Slight Chance Rain

Today 3 Mar Moses Lake Area

Partly sunny. Highs in the mid 50s to lower 60s. South wind 5 to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 3 Mar Moses Lake Area

Mostly cloudy. A chance of rain. Lows in the lower to mid 40s. South wind 5 to 15 Mph with Gusts up to 20 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an inch.

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Mattawa Temperature Statistics

March Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 1 March, 2026

    27 °F

  • Average March

    40.4 °F

  • Highest 1 March, 2026

    55.6 °F

Climate (2021–Present)

Sunnyside Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    63.6 °F
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