Festus Weather Forecast

    • 56
    • 77

    Gradual Clearing

    • 56
    • 79

    Mostly Sunny

    • 65
    • 83

    Mostly Cloudy

    • 67
    • 83

    Chance Rain Showers

    • 63
    • 79

    Rain Showers Likely

    • 60
    • 75

    Chance Rain Showers

Today 27 Sep Jefferson

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny in the afternoon. Highs in the mid 70s. Light and variable Winds, becoming north around 5 Mph in the afternoon. Chance of rain 20 percent.

Tonight 27 Sep Jefferson

Partly cloudy. Lows in the mid 50s. North Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

Festus Temperature Statistics

September Temperature

St. Louis Downtown Airport (26.7 miles)

  • Lowest 23 September, 2026

    57.7 °F

  • Average September

    79.7 °F

  • Highest 5 September, 2026

    102.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (26.7 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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