Grant Lake Weather Forecast

    • 69
    • 88

    Increasing Clouds

    • 66
    • 88

    Rain Showers Likely

    • 52
    • 83

    Sunny

    • 62
    • 88

    Sunny

    • 60
    • 87

    Mostly Sunny

    • 59
    • 83

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

Today 17 Oct Montgomery

Mostly cloudy Early, then becoming partly sunny. A slight chance of Showers and Thunderstorms. Highs in the mid 80s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 17 Oct Montgomery

Mostly clear in the Evening, then becoming partly cloudy. Lows around 70. Southeast Winds 5 to 10 Mph.

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Grant Lake Temperature Statistics

October Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 11 October, 2025

    57 °F

  • Average October

    75.7 °F

  • Highest 1 October, 2025

    93.9 °F

Climate (2020–Present)

Conroe, Montgomery County Airport (10.6 miles)

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  • Average Low 2020–2025

    58.2 °F

  • Average 2020–2025

    69.1 °F

  • Average High 2020–2025

    80.8 °F
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