Great Falls Lake Weather Forecast

    • 67
    • 92

    Increasing Clouds

    • 67
    • 92

    Partly Sunny

    • 69
    • 96

    Mostly Sunny

    • 68
    • 95

    Mostly Sunny

    • 67
    • 94

    Mostly Sunny

    • 66
    • 93

    Slight Chance Thunderstorms

Today 13 Sep Warren

Areas of fog this morning. Sunny. Highs around 90. Light and variable Winds, becoming north around 5 Mph this afternoon.

Tonight 13 Sep Warren

Mostly clear. Patchy fog after midnight. Lows in the upper 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Falls Lake Temperature Statistics

September Temperature

McMinnville Warren County Memorial Airport (13.7 miles)

  • Lowest 1 September, 2026

    66.2 °F

  • Average September

    79.9 °F

  • Highest 3 September, 2026

    98.6 °F

Climate (2021–2026)

McMinnville Warren County Memorial Airport (13.7 miles)

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  • Average Low 2021–2026

    48.5 °F

  • Average 2021–2026

    59.6 °F

  • Average High 2021–2026

    70.8 °F
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