Umatilla Weather Forecast

    • 43
    • 63

    Chance Rain

    • 43
    • 61

    Rain

    • 38
    • 53

    Rain

    • 40
    • 51

    Rain

    • 33
    • 49

    Chance Rain

    • 31
    • 48

    Chance Rain

    • 32
    • 46

    Chance Rain

Today 15 Dec Lower Columbia Basin of Oregon

Cloudy in the Morning, becoming partly sunny. A 50 percent chance of rain. Highs in the mid to upper 60s. Windy. South wind 5 to 15 Mph with Gusts to around 30 Mph increasing to southwest 20 to 30 Mph with Gusts to around 45 Mph in the afternoon. Rainfall Amounts less than a tenth of an inch.

Tonight 15 Dec Lower Columbia Basin of Oregon

Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the lower to mid 40s. Windy. West wind 20 to 30 Mph with Gusts to around 40 Mph shifting to the southwest 5 to 15 Mph with Gusts to around 30 Mph overnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Umatilla Temperature Statistics

December Temperature

Hermiston, Hermiston Municipal Airport (6.8 miles)

  • Lowest 1 December, 2025

    25 °F

  • Average December

    46.1 °F

  • Highest 10 December, 2025

    70 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (6.8 miles)

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

  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.7 °F
Get WillyWeather+ to remove ads