St. Louis Weather Forecast

    • 68
    • 93

    Slight Chance Thunderstorms

    • 72
    • 89

    Chance Thunderstorms

    • 73
    • 85

    Thunderstorms

    • 63
    • 86

    Mostly Sunny

    • 61
    • 79

    Slight Chance Thunderstorms

    • 64
    • 80

    Chance Thunderstorms

    • 66
    • 85

    Slight Chance Thunderstorms

Today 20 Sep St. Louis City

Partly cloudy with numerous Showers and Thunderstorms in the Evening, then mostly cloudy with chance of Showers and Thunderstorms after midnight. Low around 70. South wind around 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Louis Temperature Statistics

September Temperature

St. Louis Downtown Airport (5 miles)

  • Lowest 5 September, 2019

    57 °F

  • Average September

    75.6 °F

  • Highest 16 September, 2019

    93.9 °F

Climate (2010–Present)

St. Louis Downtown Airport (5 miles)

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  • Average Low 2010–Present

    48.8 °F

  • Average 2010–Present

    58.5 °F

  • Average High 2010–Present

    68.5 °F
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