Sacajawea State Park Weather Forecast

    • 65
    • 103

    Hot

    • 68
    • 100

    Hot

    • 69
    • 100

    Hot

    • 69
    • 94

    Mostly Cloudy

    • 65
    • 90

    Partly Sunny

    • 61
    • 92

    Mostly Sunny

    • 60
    • 89

    Mostly Sunny

Today 24 Aug Lower Columbia Basin of Washington

Hot. Partly cloudy. Haze. Highs 99 to 103. North wind 5 to 10 Mph.

Tonight 24 Aug Lower Columbia Basin of Washington

Partly cloudy. Haze. Lows in the mid to upper 60s. North wind 5 to 10 Mph in the Evening, becoming light.

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Sacajawea State Park Temperature Statistics

August Temperature

Tri-Cities Airport (5.6 miles)

  • Lowest 9 August, 2025

    52.6 °F

  • Average August

    76.1 °F

  • Highest 13 August, 2025

    102.7 °F

Climate (2020–Present)

Tri-Cities Airport (5.6 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.8 °F
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