Weldon Spring Weather Forecast

    • 59
    • 81

    Rain

    • 37
    • 65

    Chance Rain

    • 48
    • 67

    Mostly Sunny

    • 59
    • 79

    Rain Likely

    • 51
    • 80

    Rain

    • 36
    • 60

    Chance Rain

    • 41
    • 58

    Partly Sunny

Today 6 Mar St. Charles

Mostly sunny with a slight chance of rain and Thunderstorms. Not as cool with Highs around 80. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 6 Mar St. Charles

Partly cloudy this Evening, then rain with a chance of Thunderstorms after midnight. Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Weldon Spring Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    27 °F

  • Average March

    42.4 °F

  • Highest 4 March, 2026

    55.9 °F

Climate (2021–Present)

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