Dorchester Weather Forecast

    • 72
    • 93

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

    • 68
    • 87

    Chance Rain Showers

    • 67
    • 90

    Slight Chance Thunderstorms

    • 58
    • 82

    Partly Sunny

    • 59
    • 78

    Partly Sunny

Today 17 Jul Allamakee

Mostly sunny. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 100.

Tonight 17 Jul Allamakee

Partly cloudy. Lows around 70. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dorchester Temperature Statistics

July Temperature

Decorah (16.8 miles)

  • Lowest 6 July, 2026

    62.6 °F

  • Average July

    74 °F

  • Highest 7 July, 2026

    86 °F

Climate (2021–2026)

Decorah (16.8 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    56.7 °F
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