Calmar Weather Forecast

    • 68
    • 87

    Slight Chance Thunderstorms

    • 69
    • 86

    Rain Showers Likely

    • 68
    • 87

    Chance Thunderstorms

    • 67
    • 85

    Slight Chance Thunderstorms

    • 65
    • 83

    Chance Rain Showers

    • 65
    • 80

    Chance Rain Showers

    • 65
    • 81

    Chance Rain Showers

Today 2 Sep Winneshiek

Mostly sunny. Highs in the upper 80s. Light Winds. Heat index Values in the mid 90s.

Tonight 2 Sep Winneshiek

Mostly clear this Evening, then becoming partly cloudy. Lows in the upper 60s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Calmar Temperature Statistics

September Temperature

Decorah (9.3 miles)

  • Lowest

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  • Average September

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Climate (2021–2026)

Decorah (9.3 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56.4 °F
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