Mattawa Weather Forecast

    • 54
    • 79

    Increasing Clouds

    • 52
    • 74

    Mostly Cloudy

    • 54
    • 79

    Mostly Cloudy

    • 53
    • 79

    Partly Sunny

    • 50
    • 80

    Mostly Sunny

    • 51
    • 78

    Partly Sunny

Today 26 Jun Moses Lake Area

Mostly cloudy with a 50 percent chance of rain Showers. Highs in the lower to mid 70s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph. Rainfall Amounts less than a tenth of an inch.

Tonight 26 Jun Moses Lake Area

Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the upper 40s to lower 50s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Mattawa Temperature Statistics

June Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 23 June, 2026

    50 °F

  • Average June

    75.9 °F

  • Highest 24 June, 2026

    94.8 °F

Climate (2021–2026)

Sunnyside Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    38.9 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    63.1 °F
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