Grand Lake Weather Forecast

    • 75
    • 101

    Thunderstorms Likely

    • 73
    • 89

    Chance Thunderstorms

    • 77
    • 93

    Slight Chance Thunderstorms

    • 76
    • 99

    Slight Chance Thunderstorms

    • 74
    • 96

    Chance Thunderstorms

    • 74
    • 93

    Slight Chance Thunderstorms

Today 18 Jun Stephens

Mostly sunny. Hot with Highs around 100. Southeast Winds 10 to 15 Mph. Heat index Values up to 109 this afternoon.

Tonight 18 Jun Stephens

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers and Thunderstorms likely after midnight. Humid with Lows in the mid 70s. East Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight. Chance of rain 70 percent.

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Grand Lake Temperature Statistics

June Temperature

Stephens County Airport (3.1 miles)

  • Lowest 6 June, 2026

    67.5 °F

  • Average June

    82.2 °F

  • Highest 1 June, 2026

    97.2 °F

Climate (2021–2026)

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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