Denmark Weather Forecast

    • 69
    • 93

    Increasing Clouds

    • 66
    • 87

    Partly Sunny

    • 67
    • 86

    Partly Sunny

    • 74
    • 94

    Partly Sunny

    • 68
    • 93

    Chance Rain Showers

    • 64
    • 85

    Slight Chance Rain Showers

Today 5 Sep Lee

Sunny, hot with Highs in the mid 90s. West Winds around 5 Mph, becoming north around 5 Mph in the afternoon. Heat index Values up to 105.

Tonight 5 Sep Lee

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows around 70. Northeast Winds around 5 Mph. Heat index Values up to 102 early in the evening.

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Denmark Temperature Statistics

September Temperature

Fort Madison Municipal Airport (5 miles)

  • Lowest 1 September, 2026

    75.2 °F
  • Average September

    84.2 °F
  • Highest 1 September, 2026

    96.8 °F

Climate (2021–2026)

Fort Madison Municipal Airport (5 miles)

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  • Average Low 2021–2026

    45.4 °F
  • Average 2021–2026

    55 °F
  • Average High 2021–2026

    64.7 °F
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