Marys Lake Weather Forecast

    • 55
    • 80

    Rain Showers

    • 49
    • 66

    Rain Showers

    • 54
    • 84

    Mostly Sunny

    • 49
    • 79

    Chance Rain Showers

    • 49
    • 74

    Slight Chance Thunderstorms

    • 50
    • 78

    Mostly Sunny

Today 13 Sep Garden

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Highs in the upper 70s. South Winds around 10 Mph. Chance of precipitation 30 percent.

Tonight 13 Sep Garden

Showers and a chance of Thunderstorms in the Evening, then Showers likely and a slight chance of Thunderstorms after midnight. Lows in the mid 50s. Southeast Winds around 10 Mph, becoming west after midnight. Chance of precipitation 80 percent.

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Marys Lake Temperature Statistics

September Temperature

Alliance, Alliance Municipal Airport (20.5 miles)

  • Lowest 6 September, 2025

    39 °F

  • Average September

    65.9 °F

  • Highest 8 September, 2025

    89.1 °F

Climate (2020–Present)

Alliance, Alliance Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    63.7 °F
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