Mattawa Weather Forecast

    • 30
    • 36

    Slight Chance Rain/Snow

    • 30
    • 41

    Partly Sunny

    • 29
    • 41

    Mostly Cloudy

    • 32
    • 39

    Chance Rain

    • 37
    • 50

    Chance Rain

    • 35
    • 50

    Chance Rain

Today 1 Dec Moses Lake Area

Cloudy with a 20 percent chance of snow. Highs in the lower to mid 30s. Light Wind, becoming southeast 5 to 10 Mph in the afternoon.

Tonight 1 Dec Moses Lake Area

Mostly cloudy with a chance of rain or snow. Lows in the upper 20s. Light wind. Chance of precipitation 50 percent.

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Mattawa Temperature Statistics

December Temperature

Sunnyside Municipal Airport (28.6 miles)

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Climate (2020–Present)

Sunnyside Municipal Airport (28.6 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    63.3 °F
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