St. Louis Downtown Airport Weather Forecast

    • 1
    • 30

    Mostly Sunny

    • 7
    • 30

    Partly Sunny

    • 1
    • 20

    Mostly Cloudy

    • -1
    • 14

    Partly Sunny

    • 1
    • 17

    Partly Sunny

    • 12
    • 26

    Partly Sunny

Today 27 Jan St. Clair

Sunny. Not as cool with Highs in the upper 20s. West Winds 10 to 15 Mph. Wind chill Values as low as 5 below in the morning.

Tonight 27 Jan St. Clair

Clear, cold. Near steady temperature around 11. Temperature rising to around 12 through Sunrise. Southwest Winds around 10 Mph with Gusts up to 20 Mph. Wind chill Values as low as 6 below.

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St. Louis Downtown Airport Temperature Statistics

January Temperature

St. Louis Downtown Airport (0.6 miles)

  • Lowest 24 January, 2026

    3 °F

  • Average January

    34.2 °F

  • Highest 6 January, 2026

    69.7 °F

Climate (2021–Present)

St. Louis Downtown Airport (0.6 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.7 °F
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