Grand Lake Weather Forecast

    • 64
    • 85

    Slight Chance Thunderstorms

    • 65
    • 88

    Slight Chance Thunderstorms

    • 67
    • 87

    Rain Showers

    • 66
    • 82

    Rain Showers Likely

    • 68
    • 86

    Slight Chance Thunderstorms

    • 70
    • 89

    Slight Chance Thunderstorms

    • 70
    • 90

    Chance Thunderstorms

Today 24 May Stephens

Mostly cloudy with a 40 percent chance of Showers and Thunderstorms. Highs in the mid 80s. East Winds around 5 Mph.

Tonight 24 May Stephens

Mostly cloudy with a 40 percent chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 60s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Temperature Statistics

May Temperature

Stephens County Airport (3.1 miles)

  • Lowest 2 May, 2026

    47.5 °F

  • Average May

    71.8 °F

  • Highest 13 May, 2026

    93.7 °F

Climate (2021–Present)

Stephens County Airport (3.1 miles)

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  • Average Low 2021–2026

    56.8 °F

  • Average 2021–2026

    68.6 °F

  • Average High 2021–2026

    80.9 °F
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