Grand Lake Weather Forecast

    • 73
    • 98

    Slight Chance Thunderstorms

    • 73
    • 97

    Hot

    • 75
    • 97

    Hot

    • 71
    • 97

    Chance Thunderstorms

    • 66
    • 91

    Chance Rain Showers

    • 64
    • 85

    Slight Chance Rain Showers

Today 26 Sep Stephens

Mostly sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the upper 90s. South Winds around 5 Mph.

Tonight 26 Sep Stephens

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Temperature Statistics

September Temperature

Stephens County Airport (3.1 miles)

  • Lowest 22 September, 2026

    70.3 °F

  • Average September

    87.8 °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

    57.2 °F

  • Average 2021–2026

    69 °F

  • Average High 2021–2026

    81.4 °F
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