Algonquin Weather Forecast

    • 75
    • 85

    Rain Showers

    • 77
    • 83

    Chance Thunderstorms

    • 72
    • 88

    Chance Thunderstorms

    • 68
    • 80

    Mostly Sunny

    • 71
    • 81

    Partly Sunny

    • 74
    • 82

    Slight Chance Thunderstorms

Today 18 Jul Dorchester

Partly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. North Winds 5 to 10 Mph, becoming northwest this afternoon. Chance of rain 20 percent.

Tonight 18 Jul Dorchester

Mostly cloudy in the Evening, then becoming partly cloudy. A chance of Showers and Thunderstorms. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Algonquin Temperature Statistics

July Temperature

Cambridge-Dorchester Airport (5 miles)

  • Lowest 5 July, 2025

    64.4 °F

  • Average July

    79.1 °F

  • Highest 8 July, 2025

    93.2 °F

Climate (2020–Present)

Cambridge-Dorchester Airport (5 miles)

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  • Average Low 2020–2025

    49.5 °F

  • Average 2020–2025

    58.4 °F

  • Average High 2020–2025

    66.9 °F
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