Weldon Spring Conservation Area Weather Forecast

    • 40
    • 73

    Mostly Sunny

    • 30
    • 67

    Chance Rain

    • 32
    • 46

    Rain/Snow

    • 36
    • 45

    Rain

    • 42
    • 54

    Rain Likely

    • 50
    • 63

    Rain Likely

Today 27 Feb St. Charles

Sunny. Not as cool with Highs in the lower 70s. Southwest Winds 5 to 10 Mph, increasing to 15 to 20 Mph this afternoon.

Tonight 27 Feb St. Charles

Mostly clear. Lows around 40. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Weldon Spring Conservation Area Temperature Statistics

February Temperature

St. Louis, Spirit Of St. Louis Airport (4.3 miles)

  • Lowest 1 February, 2026

    -7.3 °F

  • Average February

    38.4 °F

  • Highest 18 February, 2026

    73.7 °F

Climate (2021–Present)

St. Louis, Spirit Of St. Louis Airport (4.3 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.5 °F
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