Grand Lake Weather Forecast

    • 79
    • 106

    Hot

    • 80
    • 106

    Hot

    • 81
    • 106

    Hot

    • 80
    • 106

    Hot

    • 80
    • 106

    Hot

    • 77
    • 104

    Slight Chance Thunderstorms

Today 21 Aug Stephens

Sunny. A less than 20 percent chance of Showers and Thunderstorms in the afternoon. Hot with Highs around 106. Southwest Winds around 5 Mph.

Tonight 21 Aug Stephens

Mostly clear. Lows in the upper 70s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Temperature Statistics

August Temperature

Stephens County Airport (3.1 miles)

  • Lowest 2 August, 2026

    65.8 °F

  • Average August

    89.8 °F

  • Highest 17 August, 2026

    105.8 °F

Climate (2021–2026)

Stephens County Airport (3.1 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    68.8 °F

  • Average High 2021–2026

    81.1 °F
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