Grand Lake Weather Forecast

    • 21
    • 43

    Mostly Sunny

    • 34
    • 53

    Sunny

    • 55
    • 67

    Mostly Cloudy

    • 49
    • 71

    Rain Showers Likely

    • 37
    • 62

    Mostly Sunny

    • 38
    • 59

    Mostly Sunny

Today 31 Jan Montgomery

Sunny, cooler with Highs in the lower 40s. North Winds 10 to 15 Mph.

Tonight 31 Jan Montgomery

Clear, cold with Lows in the upper 20s. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Grand Lake Temperature Statistics

January Temperature

Conroe, Montgomery County Airport (6.8 miles)

  • Lowest 27 January, 2026

    18 °F

  • Average January

    52.8 °F

  • Highest 2 January, 2026

    83.6 °F

Climate (2021–Present)

Conroe, Montgomery County Airport (6.8 miles)

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  • Average Low 2021–2026

    58.4 °F

  • Average 2021–2026

    69.3 °F

  • Average High 2021–2026

    81 °F
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