Long Lake Weather Forecast

    • 74
    • 101

    Hot

    • 74
    • 102

    Hot

    • 75
    • 101

    Hot

    • 76
    • 103

    Hot

    • 76
    • 102

    Hot

    • 75
    • 102

    Hot

Today 4 Sep Washington

Sunny, hot with Highs around 100. South Winds around 10 Mph. Heat index Values up to 107.

Tonight 4 Sep Washington

Clear. Lows in the mid 70s. South Winds 5 to 10 Mph.

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Long Lake Temperature Statistics

September Temperature

Bartlesville, Bartlesville Municipal Airport (6.8 miles)

  • Lowest 1 September, 2026

    69.7 °F

  • Average September

    89.5 °F

  • Highest 1 September, 2026

    102.7 °F

Climate (2021–2026)

Bartlesville, Bartlesville Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    73.9 °F
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