Heitman Aerodrome Weather Forecast

    • 26
    • 34

    Chance Snow

    • 21
    • 45

    Snow Showers

    • 11
    • 26

    Partly Sunny

    • 15
    • 27

    Partly Sunny

    • 10
    • 26

    Mostly Sunny

    • 20
    • 32

    Mostly Sunny

Today 15 Jan St. Clair

Sunny. Highs in the mid 30s. Northwest Winds around 5 Mph, becoming southwest.

Tonight 15 Jan St. Clair

Mostly cloudy. A chance of snow in the evening. Not as cool with Lows in the upper 20s. Temperature rising into the lower 30s after midnight. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of snow 50 percent.

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Heitman Aerodrome Temperature Statistics

January Temperature

St. Louis Downtown Airport (9.9 miles)

  • Lowest 4 January, 2026

    19 °F

  • Average January

    42.2 °F

  • Highest 6 January, 2026

    68 °F

Climate (2021–Present)

St. Louis Downtown Airport (9.9 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.7 °F
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