Grant Lake Weather Forecast

    • 77
    • 94

    Thunderstorms Likely

    • 77
    • 93

    Chance Thunderstorms

    • 78
    • 94

    Slight Chance Thunderstorms

    • 77
    • 96

    Mostly Sunny

    • 76
    • 96

    Partly Sunny

    • 74
    • 95

    Partly Sunny

    • 75
    • 95

    Partly Sunny

Today 19 Jun Montgomery

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. South Winds around 5 Mph. Chance of rain 40 percent. Heat index Values up to 113.

Tonight 19 Jun Montgomery

Mostly cloudy. Thunderstorms likely with a chance of Showers this Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 70s. Southeast Winds around 5 Mph. Chance of rain 70 percent. Heat index Values up to 108 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

June Temperature

Conroe, Montgomery County Airport (10.6 miles)

  • Lowest 1 June, 2026

    70.6 °F

  • Average June

    82.3 °F

  • Highest 1 June, 2026

    94.6 °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

    69.8 °F

  • Average High 2021–2026

    81.4 °F
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