Mattawa Weather Forecast

    • 18
    • 28

    Mostly Cloudy

    • 20
    • 33

    Mostly Cloudy

    • 23
    • 32

    Mostly Cloudy

    • 21
    • 32

    Chance Snow

    • 21
    • 32

    Chance Snow

    • 22
    • 31

    Chance Snow

Today 5 Dec Moses Lake Area

Mostly cloudy. Highs in the 20s. Light Wind, becoming southwest 5 to 10 Mph in the afternoon.

Tonight 5 Dec Moses Lake Area

Mostly cloudy. Lows 14 to 18. Light wind.

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Mattawa Temperature Statistics

December Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 3 December, 2022

    15.8 °F
  • Average December

    26.3 °F
  • Highest 1 December, 2022

    42.6 °F

Climate (2015–Present)

Sunnyside Municipal Airport (28.6 miles)

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  • Average Low 2015–Present

    39.7 °F
  • Average 2015–Present

    52.6 °F
  • Average High 2015–Present

    65.1 °F
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