Marshland Weather Forecast

    • 54
    • 63

    Increasing Clouds

    • 53
    • 67

    Partly Sunny

    • 57
    • 74

    Mostly Cloudy

    • 56
    • 67

    Rain

    • 54
    • 60

    Rain Showers

    • 53
    • 63

    Rain Showers

    • 54
    • 65

    Chance Rain

Today 29 Aug Lower Columbia River

Mostly sunny. Highs in the lower 70s. Northwest wind 10 to 15 Mph.

Tonight 29 Aug Lower Columbia River

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the lower 50s. Northwest wind 5 to 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marshland Temperature Statistics

August Temperature

Southwest Washington Regional Airport (18.6 miles)

  • Lowest 9 August, 2026

    54 °F

  • Average August

    67.7 °F

  • Highest 5 August, 2026

    93.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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