Henry Post Army Airfield (Fort Sill) Weather Forecast

    • 74
    • 98

    Hot

    • 74
    • 104

    Hot

    • 75
    • 102

    Hot

    • 76
    • 100

    Hot

    • 73
    • 100

    Hot

    • 71
    • 99

    Hot

Today 11 Sep Comanche

Mostly sunny. A slight chance of Showers in the morning. Highs in the upper 90s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 11 Sep Comanche

Partly cloudy. Near steady temperature in the lower 70s. East Winds 5 to 10 Mph.

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Henry Post Army Airfield (Fort Sill) Temperature Statistics

September Temperature

Fort Sill (3.1 miles)

  • Lowest 1 September, 2026

    75 °F

  • Average September

    89.7 °F

  • Highest 8 September, 2026

    104.2 °F

Climate (2021–2026)

Fort Sill (3.1 miles)

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  • Average Low 2021–2026

    54.1 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    77.2 °F
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