Mercer Ranch Airport Weather Forecast

    • 30
    • 43

    Patchy Freezing Fog

    • 27
    • 40

    Patchy Freezing Fog

    • 28
    • 39

    Partly Sunny

    • 26
    • 41

    Partly Sunny

    • 25
    • 39

    Partly Sunny

    • 28
    • 39

    Mostly Cloudy

    • 31
    • 40

    Mostly Cloudy

Today 15 Jan Lower Columbia Basin of Washington

Mostly cloudy in the Morning, becoming mostly sunny. Patchy dense fog in the morning. Highs in the lower to mid 40s. Light wind.

Tonight 15 Jan Lower Columbia Basin of Washington

Partly cloudy. Patchy fog through the night. Patchy freezing fog overnight. Lows in the upper 20s to lower 30s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercer Ranch Airport Temperature Statistics

January Temperature

Sunnyside Municipal Airport (29.2 miles)

  • Lowest 1 January, 2026

    23.7 °F

  • Average January

    36.3 °F

  • Highest 12 January, 2026

    59.9 °F

Climate (2021–Present)

Sunnyside Municipal Airport (29.2 miles)

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

  • Average Low 2021–2026

    38.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    63.6 °F
Get WillyWeather+ to remove ads