Mattawa Weather Forecast

    • 33
    • 50

    Slight Chance Rain

    • 44
    • 57

    Rain Likely

    • 44
    • 59

    Rain Likely

    • 41
    • 62

    Rain Likely

    • 38
    • 56

    Slight Chance Rain/Snow

    • 43
    • 56

    Chance Rain/Snow

Today 10 Mar Moses Lake Area

Sunny. Highs in the 40s. Breezy. Southwest wind 10 to 20 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 10 Mar Moses Lake Area

Mostly cloudy with a chance of rain or snow. Lows in the lower to mid 30s. Breezy. Southwest wind 10 to 20 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

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Mattawa Temperature Statistics

March Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 1 March, 2026

    27 °F

  • Average March

    47.3 °F

  • Highest 7 March, 2026

    71.4 °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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