St. Louis Weather Forecast

    • 4
    • 31

    Chance Snow

    • 10
    • 17

    Sunny

    • 28
    • 42

    Mostly Sunny

    • 37
    • 52

    Partly Sunny

    • 45
    • 55

    Chance Rain

    • 27
    • 58

    Slight Chance Rain

    • 36
    • 42

    Mostly Cloudy

Today 13 Dec St. Louis City

Cloudy with a chance of snow with a slight chance of freezing drizzle. Near steady temperature in the lower 20s. North Winds 10 to 15 Mph. Chance of precipitation 50 percent. Wind chill Values as low as 5 above.

Tonight 13 Dec St. Louis City

Mostly cloudy with a chance of Flurries this Evening, then mostly clear after midnight. Much Colder with Lows around 3 above. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 13 below.

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St. Louis Temperature Statistics

December Temperature

St. Louis Downtown Airport (5 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 (5 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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