Grand Lake Weather Forecast

    • 74
    • 92

    Becoming Sunny

    • 74
    • 95

    Mostly Sunny

    • 75
    • 97

    Sunny

    • 74
    • 99

    Hot

    • 75
    • 100

    Hot

    • 77
    • 100

    Hot

    • 78
    • 101

    Hot

Today 18 Jul Stephens

Mostly sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the lower 90s. South Winds around 10 Mph.

Tonight 18 Jul Stephens

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

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Grand Lake Temperature Statistics

July Temperature

Stephens County Airport (3.1 miles)

  • Lowest 6 July, 2026

    68.9 °F

  • Average July

    84.5 °F

  • Highest 5 July, 2026

    101.3 °F

Climate (2021–2026)

Stephens County Airport (3.1 miles)

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    68.7 °F

  • Average High 2021–2026

    81 °F
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