Grant Lake Weather Forecast

    • 72
    • 81

    Rain Showers

    • 72
    • 88

    Chance Thunderstorms

    • 72
    • 93

    Chance Thunderstorms

    • 72
    • 94

    Partly Sunny

    • 72
    • 95

    Mostly Sunny

    • 73
    • 96

    Mostly Sunny

Today 14 Jul Montgomery

Thunderstorms likely. Showers, mainly in the morning. Locally heavy rainfall possible in the morning. Humid with Highs in the lower 80s. East Winds around 5 Mph, becoming south around 5 Mph in the afternoon. Chance of rain near 100 percent.

Tonight 14 Jul Montgomery

Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the mid 70s. Light and variable Winds. Chance of rain 50 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

    69.7 °F

  • Average July

    83.8 °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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