Birch Lake Weather Forecast

    • 64
    • 87

    Thunderstorms Likely

    • 66
    • 85

    Chance Thunderstorms

    • 67
    • 89

    Chance Thunderstorms

    • 65
    • 86

    Chance Thunderstorms

    • 63
    • 85

    Chance Thunderstorms

    • 60
    • 81

    Slight Chance Thunderstorms

Today 18 Sep Osage

Mostly cloudy in the Morning, then becoming partly sunny. A chance of Showers and Thunderstorms. Highs in the mid 80s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

Tonight 18 Sep Osage

Partly cloudy. A chance of Showers and Thunderstorms. Lows in the mid 60s. East Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Birch Lake Temperature Statistics

September Temperature

Bartlesville, Bartlesville Municipal Airport (18.6 miles)

  • Lowest 7 September, 2025

    50 °F

  • Average September

    71.3 °F

  • Highest 12 September, 2025

    93.9 °F

Climate (2020–Present)

Bartlesville, Bartlesville Municipal Airport (18.6 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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