Grant Lake Weather Forecast

    • 43
    • 61

    Decreasing Clouds

    • 39
    • 67

    Mostly Sunny

    • 40
    • 56

    Sunny

    • 41
    • 68

    Partly Sunny

    • 36
    • 62

    Mostly Sunny

    • 34
    • 59

    Mostly Sunny

Today 13 Jan Montgomery

Partly sunny in the Morning, then becoming mostly cloudy. A 20 percent chance of Showers. Highs around 60. Southwest Winds around 5 Mph.

Tonight 13 Jan Montgomery

Partly cloudy. Lows in the mid 40s. Southwest Winds around 5 Mph.

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Grant Lake Temperature Statistics

January Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 1 January, 2026

    34 °F

  • Average January

    63.1 °F

  • Highest 2 January, 2026

    82.9 °F

Climate (2021–Present)

Conroe, Montgomery County Airport (10.6 miles)

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  • Average Low 2021–2026

    58.5 °F

  • Average 2021–2026

    69.4 °F

  • Average High 2021–2026

    81 °F
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