Mattawa Weather Forecast

    • 44
    • 61

    Mostly Cloudy

    • 40
    • 58

    Mostly Cloudy

    • 39
    • 53

    Mostly Cloudy

    • 42
    • 55

    Mostly Cloudy

    • 41
    • 58

    Rain Likely

    • 38
    • 54

    Rain Likely

Today 11 Dec Moses Lake Area

Mostly cloudy. Highs in the upper 50s to lower 60s. Breezy. West wind 10 to 20 Mph. Gusts up to 40 Mph in the morning.

Tonight 11 Dec Moses Lake Area

Mostly cloudy. A chance of rain in the evening. Lows in the upper 30s to mid 40s. West wind 5 to 10 Mph in the Evening, becoming light and variable. Chance of precipitation 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mattawa Temperature Statistics

December Temperature

Sunnyside Municipal Airport (28.6 miles)

  • Lowest 9 December, 2025

    46 °F

  • Average December

    54.9 °F

  • Highest 8 December, 2025

    62.6 °F

Climate (2020–Present)

Sunnyside Municipal Airport (28.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    63.5 °F
Get WillyWeather+ to remove ads