Great Falls Lake Weather Forecast

    • 75
    • 93

    Decreasing Clouds

    • 75
    • 94

    Partly Sunny

    • 75
    • 95

    Mostly Sunny

    • 75
    • 97

    Hot

    • 73
    • 96

    Chance Thunderstorms

    • 72
    • 91

    Chance Thunderstorms

    • 72
    • 92

    Mostly Sunny

Today 13 Aug Warren

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature around 90. West Winds around 5 Mph. Chance of rain 30 percent. Heat index Values up to 105.

Tonight 13 Aug Warren

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 70s. South Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Falls Lake Temperature Statistics

August Temperature

McMinnville Warren County Memorial Airport (13.7 miles)

  • Lowest 2 August, 2026

    66.2 °F

  • Average August

    76.2 °F

  • Highest 11 August, 2026

    91.4 °F

Climate (2021–2026)

McMinnville Warren County Memorial Airport (13.7 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    59.5 °F

  • Average High 2021–2026

    70.6 °F
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