Fairmount Park Weather Forecast

    • 59
    • 75

    Increasing Clouds

    • 61
    • 74

    Rain Showers Likely

    • 62
    • 74

    Chance Thunderstorms

    • 61
    • 82

    Slight Chance Thunderstorms

    • 61
    • 83

    Partly Sunny

    • 60
    • 80

    Partly Sunny

    • 60
    • 78

    Chance Rain Showers

Today 28 Aug Carlton/South St. Louis

Mostly sunny. Highs in the upper 70s. South Winds around 5 Mph.

Tonight 28 Aug Carlton/South St. Louis

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Not as cool with Lows in the upper 50s. East Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairmount Park Temperature Statistics

August Temperature

Richard I. Bong Airport (5.6 miles)

  • Lowest 19 August, 2026

    47.1 °F

  • Average August

    68.3 °F

  • Highest 17 August, 2026

    84.6 °F

Climate (2021–2026)

Richard I. Bong Airport (5.6 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    42.7 °F

  • Average High 2021–2026

    51 °F
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