Festus Weather Forecast

    • 64
    • 82

    Thunderstorms

    • 59
    • 77

    Mostly Cloudy

    • 61
    • 82

    Partly Sunny

    • 63
    • 85

    Chance Thunderstorms

    • 62
    • 85

    Chance Thunderstorms

    • 67
    • 85

    Chance Thunderstorms

Today 21 Jun Jefferson

Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Locally heavy rainfall possible. Near steady temperature in the upper 70s. South Winds 5 to 10 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 21 Jun Jefferson

Mostly cloudy. Numerous Showers and Thunderstorms, mainly in the evening. Some Thunderstorms may produce heavy rainfall. Lows in the mid 60s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming west after midnight. Chance of rain 70 percent.

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Festus Temperature Statistics

June Temperature

St. Louis Downtown Airport (26.7 miles)

  • Lowest 3 June, 2026

    52.6 °F

  • Average June

    75.2 °F

  • Highest 10 June, 2026

    93.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (26.7 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.3 °F
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