Weldon Spring Weather Forecast

    • 14
    • 32

    Partly Sunny

    • 29
    • 42

    Partly Sunny

    • 25
    • 51

    Mostly Sunny

    • 31
    • 43

    Partly Sunny

    • 30
    • 53

    Partly Sunny

    • 40
    • 53

    Partly Sunny

Today 4 Feb St. Charles

Partly sunny. Highs in the lower 30s. North Winds around 5 Mph.

Tonight 4 Feb St. Charles

Mostly clear in the Evening, then becoming partly cloudy. Lows around 14. North Winds around 5 Mph, becoming southwest after midnight.

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Weldon Spring Temperature Statistics

February Temperature

St. Louis, Spirit Of St. Louis Airport (3.7 miles)

  • Lowest 1 February, 2026

    10 °F

  • Average February

    28.8 °F

  • Highest 2 February, 2026

    39 °F

Climate (2021–Present)

St. Louis, Spirit Of St. Louis Airport (3.7 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    68.3 °F
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