Mattawa Weather Forecast

    • 39
    • 56

    Increasing Clouds

    • 46
    • 60

    Mostly Cloudy

    • 44
    • 64

    Mostly Cloudy

    • 38
    • 66

    Partly Sunny

    • 32
    • 53

    Mostly Sunny

    • 32
    • 50

    Mostly Cloudy

Today 5 Mar Moses Lake Area

Mostly sunny. Highs in the lower to mid 50s. Breezy. West wind 10 to 20 Mph with Gusts up to 30 Mph.

Tonight 5 Mar Moses Lake Area

Mostly clear in the Evening, becoming mostly cloudy. Lows in the 30s. West wind 5 to 15 Mph. Gusts up to 30 Mph in the evening.

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Mattawa Temperature Statistics

March Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 1 March, 2026

    27 °F

  • Average March

    43.4 °F

  • Highest 3 March, 2026

    62.8 °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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