Grand Lake Weather Forecast

    • 75
    • 101

    Hot

    • 75
    • 102

    Hot

    • 75
    • 101

    Hot

    • 73
    • 99

    Hot

    • 71
    • 99

    Hot

    • 71
    • 97

    Chance Rain Showers

Today 14 Sep Stephens

Sunny, hot with Highs around 101. South Winds 5 to 10 Mph.

Tonight 14 Sep Stephens

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Temperature Statistics

September Temperature

Stephens County Airport (3.1 miles)

  • Lowest 11 September, 2026

    71.6 °F

  • Average September

    88.6 °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

    68.9 °F

  • Average High 2021–2026

    81.3 °F
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