Grand Lake Weather Forecast

    • 70
    • 86

    Chance Rain Showers

    • 72
    • 86

    Rain Showers Likely

    • 73
    • 91

    Slight Chance Thunderstorms

    • 73
    • 93

    Mostly Sunny

    • 74
    • 95

    Sunny

    • 75
    • 98

    Hot

    • 76
    • 100

    Hot

Today 15 Jul Stephens

Mostly cloudy with a 30 percent chance of Showers and Thunderstorms. Highs in the mid 80s. South Winds 5 to 10 Mph.

Tonight 15 Jul Stephens

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows around 70. South Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Temperature Statistics

July Temperature

Stephens County Airport (3.1 miles)

  • Lowest 6 July, 2026

    68.9 °F

  • Average July

    86.1 °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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