Grand Lake Weather Forecast

    • 73
    • 95

    Mostly Sunny

    • 73
    • 95

    Mostly Sunny

    • 71
    • 94

    Slight Chance Thunderstorms

    • 70
    • 90

    Chance Rain Showers

    • 71
    • 89

    Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

Today 31 May Stephens

Sunny. Highs in the upper 90s. South Winds 5 to 10 Mph.

Tonight 31 May Stephens

Partly cloudy. Lows in the lower 70s. South Winds 5 to 10 Mph.

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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

    72.2 °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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