West Alton Weather Forecast

    • 77
    • 97

    Hot

    • 77
    • 98

    Hot

    • 78
    • 97

    Hot

    • 78
    • 97

    Slight Chance Thunderstorms

    • 77
    • 96

    Slight Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

Today 29 Jun St. Charles

Mostly sunny. Hot with Highs in the mid 90s. South Winds 10 to 15 Mph. Heat index Values up to 110.

Tonight 29 Jun St. Charles

Partly cloudy in the Evening, then clearing. Humid with Lows in the mid 70s. South Winds 10 to 15 Mph. Heat index Values up to 109 early in the evening.

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West Alton Temperature Statistics

June Temperature

St. Louis Regional Airport (9.9 miles)

  • Lowest 3 June, 2026

    52.5 °F

  • Average June

    71.7 °F

  • Highest 9 June, 2026

    91.4 °F

Climate (2021–2026)

St. Louis Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.6 °F
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