Marietta Weather Forecast

    • 24
    • 49

    Mostly Cloudy

    • 16
    • 32

    Partly Sunny

    • 31
    • 39

    Mostly Cloudy

    • 28
    • 55

    Slight Chance Rain Showers

    • 27
    • 44

    Chance Rain/Snow

    • 33
    • 48

    Chance Rain Showers

Today 5 Apr Lac Qui Parle

Breezy. Not as cool. Mostly sunny. Near steady temperature in the upper 40s. Northwest Winds 15 to 25 Mph.

Tonight 5 Apr Lac Qui Parle

Mostly cloudy. Lows in the mid 20s. Northwest Winds 10 to 20 Mph.

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Marietta Temperature Statistics

April Temperature

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

  • Lowest 1 April, 2026

    24.8 °F

  • Average April

    31.7 °F

  • Highest 1 April, 2026

    39.2 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    58.3 °F
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