Copan Lake Weather Forecast

    • 73
    • 91

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 72
    • 92

    Partly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 72
    • 93

    Partly Sunny

Today 23 Jun Washington

Sunny. Highs in the lower 90s. South Winds 10 to 15 Mph.

Tonight 23 Jun Washington

Mostly clear. Lows in the lower 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Copan Lake Temperature Statistics

June Temperature

Bartlesville, Bartlesville Municipal Airport (11.8 miles)

  • Lowest 10 June, 2025

    55.7 °F

  • Average June

    75 °F

  • Highest 8 June, 2025

    93.7 °F

Climate (2020–Present)

Bartlesville, Bartlesville Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    59.9 °F

  • Average High 2020–2025

    72.5 °F
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