Fenton Weather Forecast

    • 48
    • 75

    Sunny

    • 51
    • 79

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

    • 63
    • 92

    Mostly Sunny

    • 64
    • 91

    Mostly Sunny

Today 7 Sep St. Louis

Sunny. Highs in the mid 70s. North Winds 5 to 10 Mph.

Tonight 7 Sep St. Louis

Clear. Lows in the mid 40s. Northeast Winds around 5 Mph.

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  • Temperature Real-Time

Fenton Temperature Statistics

September Temperature

St. Louis, Spirit Of St. Louis Airport (14.3 miles)

  • Lowest 4 September, 2025

    55.9 °F

  • Average September

    68.6 °F

  • Highest 3 September, 2025

    86 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (14.3 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    68.1 °F
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