Algonquin Weather Forecast

    • 57
    • 74

    Increasing Clouds

    • 51
    • 73

    Thunderstorms Likely

    • 59
    • 73

    Rain Showers

    • 54
    • 72

    Mostly Sunny

    • 55
    • 73

    Mostly Sunny

    • 58
    • 77

    Chance Rain Showers

Today 15 Jun McHenry

Mostly sunny late in the Morning, then becoming partly cloudy. Highs in the mid 70s. West Winds 10 to 15 Mph.

Tonight 15 Jun McHenry

Partly cloudy. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Algonquin Temperature Statistics

June Temperature

Chicago / West Chicago, Dupage Airport (18.6 miles)

  • Lowest 2 June, 2026

    46.7 °F

  • Average June

    72.1 °F

  • Highest 6 June, 2026

    89.7 °F

Climate (2021–Present)

Chicago / West Chicago, Dupage Airport (18.6 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    61.6 °F
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