Downtown (St. Louis) Weather Forecast

    • 10
    • 17

    Sunny

    • 28
    • 42

    Mostly Sunny

    • 37
    • 52

    Partly Sunny

    • 45
    • 55

    Mostly Cloudy

    • 27
    • 58

    Slight Chance Rain

    • 36
    • 42

    Mostly Cloudy

Today 14 Dec St. Louis City

Sunny. Much cooler with Highs around 15. North Winds 10 to 15 Mph. Wind chill Values as low as 14 below in the morning.

Tonight 14 Dec St. Louis City

Clear. Lows around 8 above. East Winds around 5 Mph, becoming south with Gusts up to 20 Mph after midnight. Wind chill Values as low as 3 below.

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Downtown (St. Louis) Temperature Statistics

December Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 5 December, 2025

    10 °F

  • Average December

    31.5 °F

  • Highest 9 December, 2025

    53.1 °F

Climate (2020–Present)

St. Louis Downtown Airport (4.3 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.6 °F
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