Mattawa Weather Forecast

    • 45
    • 68

    Decreasing Clouds

    • 35
    • 65

    Partly Sunny

    • 30
    • 51

    Partly Sunny

    • 33
    • 51

    Chance Rain/Snow

    • 40
    • 57

    Chance Rain

    • 35
    • 58

    Chance Rain

Today 7 Mar Moses Lake Area

Partly sunny. Highs in the lower to mid 60s. Windy. Southwest wind 5 to 15 Mph shifting to the west 15 to 25 Mph in the afternoon. Gusts up to 35 Mph.

Tonight 7 Mar Moses Lake Area

Partly cloudy. Lows in the lower to mid 40s. Windy. Southwest wind 15 to 25 Mph with Gusts up to 30 Mph.

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Mattawa Temperature Statistics

March Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 1 March, 2026

    27 °F

  • Average March

    45 °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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