Marietta Weather Forecast

    • 63
    • 81

    Mostly Sunny

    • 64
    • 89

    Breezy

    • 49
    • 82

    Mostly Cloudy

    • 43
    • 61

    Slight Chance Rain Showers

    • 44
    • 60

    Partly Sunny

    • 49
    • 65

    Chance Rain Showers

Today 9 Oct Lac Qui Parle

Decreasing Clouds. Patchy fog early in the morning. Highs around 80. Southeast Winds 5 to 15 Mph.

Tonight 9 Oct Lac Qui Parle

Warmer. Partly cloudy. Lows in the mid 60s. Southeast Winds 10 to 15 Mph. Gusts up to 40 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marietta Temperature Statistics

October Temperature

Madison, Madison-Lac Qui Parle County Airport (11.8 miles)

  • Lowest 2 October, 2026

    34.7 °F

  • Average October

    57.5 °F

  • Highest 6 October, 2026

    87.3 °F

Climate (2021–2026)

Madison, Madison-Lac Qui Parle County Airport (11.8 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    58 °F
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