Grant Lake Weather Forecast

    • 73
    • 94

    Chance Thunderstorms

    • 73
    • 95

    Chance Thunderstorms

    • 74
    • 94

    Chance Thunderstorms

    • 74
    • 93

    Chance Thunderstorms

    • 75
    • 92

    Chance Thunderstorms

    • 74
    • 92

    Slight Chance Thunderstorms

Today 9 Sep Montgomery

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 9 Sep Montgomery

Mostly cloudy with a slight chance of Showers in the Evening, then partly cloudy after midnight. Humid with Lows in the mid 70s. Southeast Winds 5 to 10 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Grant Lake Temperature Statistics

September Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 7 September, 2026

    73 °F

  • Average September

    83.8 °F

  • Highest 7 September, 2026

    96.1 °F

Climate (2021–2026)

Conroe, Montgomery County Airport (10.6 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    70 °F

  • Average High 2021–2026

    81.7 °F
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