Grant Lake Weather Forecast

    • 76
    • 93

    Thunderstorms Likely

    • 75
    • 92

    Thunderstorms Likely

    • 73
    • 89

    Thunderstorms

    • 74
    • 90

    Thunderstorms Likely

    • 74
    • 94

    Slight Chance Thunderstorms

    • 74
    • 96

    Partly Sunny

Today 11 Jul Montgomery

Mostly sunny in the Morning, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Humid with Highs in the lower 90s. South Winds around 5 Mph. Chance of rain 50 percent. Heat index Values up to 105.

Tonight 11 Jul Montgomery

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the upper 70s. South Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

July Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 8 July, 2026

    69.1 °F

  • Average July

    84.1 °F

  • Highest 6 July, 2026

    97.6 °F

Climate (2021–2026)

Conroe, Montgomery County Airport (10.6 miles)

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  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    69.9 °F

  • Average High 2021–2026

    81.5 °F
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