Grand Lake Weather Forecast

    • 75
    • 100

    Hot

    • 74
    • 99

    Hot

    • 74
    • 99

    Hot

    • 72
    • 100

    Chance Rain Showers

    • 69
    • 95

    Chance Rain Showers

    • 69
    • 93

    Chance Rain Showers

Today 17 Sep Stephens

Mostly sunny. Hot with Highs in the upper 90s. Southeast Winds 5 to 10 Mph.

Tonight 17 Sep Stephens

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

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  • Temperature Real-Time

Grand Lake Temperature Statistics

September Temperature

Stephens County Airport (3.1 miles)

  • Lowest 11 September, 2026

    71.6 °F

  • Average September

    89 °F

  • Highest 3 September, 2026

    105.6 °F

Climate (2021–2026)

Stephens County Airport (3.1 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    69 °F

  • Average High 2021–2026

    81.3 °F
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