Grant Lake Weather Forecast

    • 75
    • 98

    Slight Chance Thunderstorms

    • 74
    • 92

    Thunderstorms Likely

    • 74
    • 91

    Thunderstorms Likely

    • 74
    • 95

    Chance Thunderstorms

    • 74
    • 95

    Chance Thunderstorms

    • 75
    • 95

    Chance Thunderstorms

Today 31 Aug Montgomery

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the upper 90s. South Winds around 5 Mph, becoming east this afternoon. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 31 Aug Montgomery

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. Southeast Winds around 5 Mph, becoming northeast around 5 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Real-Time

Grant Lake Temperature Statistics

August Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 3 August, 2026

    69.7 °F

  • Average August

    87.3 °F

  • Highest 22 August, 2026

    106.6 °F

Climate (2021–2026)

Conroe, Montgomery County Airport (10.6 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    70 °F

  • Average High 2021–2026

    81.7 °F
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