McDonnell County Park Weather Forecast

    • 58
    • 79

    Slight Chance Thunderstorms

    • 57
    • 83

    Thunderstorms Likely

    • 37
    • 68

    Slight Chance Rain Showers

    • 34
    • 49

    Mostly Sunny

    • 50
    • 66

    Mostly Sunny

    • 49
    • 73

    Mostly Cloudy

Today 13 Mar St. Louis

Mostly sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 13 Mar St. Louis

Mostly clear. Not as cool with Lows around 50. East Winds around 5 Mph.

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McDonnell County Park Temperature Statistics

March Temperature

St. Louis Lambert International Airport (2.5 miles)

  • Lowest 2 March, 2025

    24.9 °F

  • Average March

    46.9 °F

  • Highest 10 March, 2025

    75 °F

Climate (2020–Present)

St. Louis Lambert International Airport (2.5 miles)

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  • Average Low 2020–2025

    50.2 °F

  • Average 2020–2025

    59.4 °F

  • Average High 2020–2025

    68.8 °F
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