LaSalle Park Weather Forecast

    • 69
    • 92

    Rain Showers Likely

    • 63
    • 77

    Chance Rain Showers

    • 56
    • 74

    Mostly Cloudy

    • 57
    • 74

    Partly Sunny

    • 59
    • 76

    Partly Sunny

    • 57
    • 77

    Partly Sunny

Today 20 Sep St. Louis City

Partly sunny. Highs in the lower 90s. West Winds 5 to 10 Mph.

Tonight 20 Sep St. Louis City

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the upper 60s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

LaSalle Park Temperature Statistics

September Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 8 September, 2026

    59.6 °F

  • Average September

    82.1 °F

  • Highest 5 September, 2026

    102.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (4.3 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    69.5 °F
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