Grant Lake Weather Forecast

    • 29
    • 54

    Becoming Sunny

    • 34
    • 54

    Partly Sunny

    • 54
    • 64

    Mostly Cloudy

    • 62
    • 72

    Slight Chance Rain Showers

    • 53
    • 78

    Partly Sunny

    • 55
    • 71

    Mostly Cloudy

Today 14 Dec Montgomery

Mostly cloudy in the Morning, then clearing. Much cooler. Less humid with Highs in the mid 50s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 14 Dec Montgomery

Clear. Much Colder with Lows around 30. Northeast Winds 5 to 10 Mph.

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Grant Lake Temperature Statistics

December Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 2 December, 2025

    35.1 °F

  • Average December

    49.9 °F

  • Highest 7 December, 2025

    72 °F

Climate (2020–Present)

Conroe, Montgomery County Airport (10.6 miles)

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  • Average Low 2020–2025

    58.3 °F

  • Average 2020–2025

    69.2 °F

  • Average High 2020–2025

    80.9 °F
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