St. Louis Downtown Airport Weather Forecast

    • 75
    • 96

    Partly Sunny

    • 73
    • 92

    Chance Thunderstorms

    • 73
    • 91

    Chance Thunderstorms

    • 73
    • 91

    Rain Showers Likely

    • 70
    • 89

    Rain Showers Likely

    • 67
    • 89

    Partly Sunny

    • 68
    • 90

    Mostly Sunny

Today 26 Jun St. Clair

Mostly sunny with isolated Showers and Thunderstorms. Hot. Near steady temperature in the mid 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 101.

Tonight 26 Jun St. Clair

Partly cloudy. Lows in the mid 70s. South Winds 5 to 10 Mph. Heat index Values up to 100 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Louis Downtown Airport Temperature Statistics

June Temperature

St. Louis Downtown Airport (0.6 miles)

  • Lowest 10 June, 2025

    55.7 °F

  • Average June

    75.6 °F

  • Highest 22 June, 2025

    97.6 °F

Climate (2020–Present)

St. Louis Downtown Airport (0.6 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68.3 °F
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