West Alton Weather Forecast

    • 64
    • 89

    Sunny

    • 38
    • 89

    Partly Sunny

    • 40
    • 58

    Mostly Cloudy

    • 44
    • 63

    Slight Chance Thunderstorms

    • 55
    • 72

    Slight Chance Rain Showers

    • 45
    • 82

    Chance Rain Showers

Today 21 Mar St. Charles

Sunny. Highs in the upper 80s. East Winds around 5 Mph, becoming south this afternoon.

Tonight 21 Mar St. Charles

Mostly clear. Not as cool with Lows in the lower 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Real-Time

West Alton Temperature Statistics

March Temperature

St. Louis Regional Airport (9.9 miles)

  • Lowest 16 March, 2026

    22.6 °F

  • Average March

    48.3 °F

  • Highest 10 March, 2026

    82.4 °F

Climate (2021–Present)

St. Louis Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    66.5 °F
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