Fort Sill Weather Forecast

    • 74
    • 101

    Slight Chance Thunderstorms

    • 74
    • 100

    Hot

    • 74
    • 99

    Hot

    • 72
    • 100

    Hot

    • 65
    • 95

    Chance Thunderstorms

    • 63
    • 87

    Chance Rain Showers

Today 16 Sep Comanche

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs around 101. South Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 16 Sep Comanche

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

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Fort Sill Temperature Statistics

September Temperature

Fort Sill (9.3 miles)

  • Lowest 11 September, 2026

    69.8 °F

  • Average September

    89.1 °F

  • Highest 12 September, 2026

    107.8 °F

Climate (2021–2026)

Fort Sill (9.3 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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