Hamburg Weather Forecast

    • 26
    • 41

    Partly Sunny

    • 29
    • 38

    Chance Snow

    • 14
    • 36

    Mostly Cloudy

    • 24
    • 32

    Partly Sunny

    • 33
    • 45

    Mostly Cloudy

    • 23
    • 47

    Slight Chance Rain

Today 5 Dec St. Charles

Sunny. Not as cool with Highs in the upper 30s. South Winds 5 to 10 Mph.

Tonight 5 Dec St. Charles

Mostly cloudy. Not as cool with Lows in the mid 20s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hamburg Temperature Statistics

December Temperature

St. Louis, Spirit Of St. Louis Airport (3.7 miles)

  • Lowest 2 December, 2025

    18 °F

  • Average December

    23.7 °F

  • Highest 1 December, 2025

    26.1 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (3.7 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    68.3 °F
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