Grand Lake Weather Forecast

    • 45
    • 69

    Sunny

    • 48
    • 74

    Sunny

    • 47
    • 74

    Chance Thunderstorms

    • 46
    • 72

    Sunny

    • 48
    • 73

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

Today 30 Oct Montgomery

Sunny. Highs in the upper 60s. Northwest Winds 5 to 10 Mph.

Tonight 30 Oct Montgomery

Clear. Lows in the mid 40s. North Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Temperature Statistics

October Temperature

Conroe, Montgomery County Airport (6.8 miles)

  • Lowest 20 October, 2025

    50 °F

  • Average October

    74.4 °F

  • Highest 1 October, 2025

    93.9 °F

Climate (2020–Present)

Conroe, Montgomery County Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    58.2 °F

  • Average 2020–2025

    69.2 °F

  • Average High 2020–2025

    80.9 °F
Get WillyWeather+ to remove ads