St. Louis Regional Airport Weather Forecast

    • 75
    • 92

    Chance Thunderstorms

    • 67
    • 93

    Rain Showers

    • 63
    • 83

    Mostly Sunny

    • 67
    • 86

    Rain Showers Likely

    • 62
    • 82

    Chance Thunderstorms

    • 59
    • 79

    Slight Chance Thunderstorms

Today 10 Jun Madison

Sunny. Highs in the lower 90s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Heat index Values up to 101.

Tonight 10 Jun Madison

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly cloudy after midnight. Lows in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 40 percent. Heat index Values up to 100 early in the evening.

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St. Louis Regional Airport Temperature Statistics

June Temperature

St. Louis Regional Airport (0.6 miles)

  • Lowest 3 June, 2026

    52.5 °F

  • Average June

    72 °F

  • Highest 6 June, 2026

    87.8 °F

Climate (2021–Present)

St. Louis Regional Airport (0.6 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.7 °F
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