McNary National Wildlife Refuge Weather Forecast

    • 64
    • 95

    Mostly Sunny

    • 65
    • 96

    Mostly Sunny

    • 64
    • 97

    Hot

    • 65
    • 97

    Hot

    • 66
    • 99

    Hot

    • 66
    • 99

    Hot

Today 29 Aug Lower Columbia Basin of Washington

Sunny. Highs in the lower to mid 90s. Light Wind, becoming northeast 5 to 10 Mph in the afternoon.

Tonight 29 Aug Lower Columbia Basin of Washington

Mostly clear. Haze. Lows in the lower to mid 60s. Light wind.

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McNary National Wildlife Refuge Temperature Statistics

August Temperature

Tri-Cities Airport (8.7 miles)

  • Lowest 9 August, 2025

    52.6 °F

  • Average August

    76.4 °F

  • Highest 13 August, 2025

    102.7 °F

Climate (2020–Present)

Tri-Cities Airport (8.7 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.9 °F
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