Festus Weather Forecast

    • 45
    • 77

    Sunny

    • 48
    • 80

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

    • 59
    • 91

    Mostly Sunny

    • 62
    • 94

    Mostly Sunny

    • 64
    • 95

    Mostly Sunny

Today 7 Sep Jefferson

Sunny. Highs in the mid 70s. Light and variable Winds, becoming north 5 to 10 Mph.

Tonight 7 Sep Jefferson

Clear. Lows in the mid 40s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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Festus Temperature Statistics

September Temperature

St. Louis Downtown Airport (26.7 miles)

  • Lowest 3 September, 2025

    55.9 °F

  • Average September

    68.9 °F

  • Highest 3 September, 2025

    87.1 °F

Climate (2020–Present)

St. Louis Downtown Airport (26.7 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    68.5 °F
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