Port Barrington Weather Forecast

    • 70
    • 91

    Thunderstorms Likely

    • 68
    • 83

    Rain Showers Likely

    • 69
    • 85

    Rain Showers Likely

    • 72
    • 89

    Slight Chance Thunderstorms

    • 73
    • 92

    Slight Chance Thunderstorms

    • 66
    • 89

    Slight Chance Thunderstorms

Today 24 Jul McHenry

Mostly cloudy. A chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Continued hot and humid. Highs in the upper 80s. West Winds 10 to 15 Mph. Chance of precipitation 60 percent. Heat index Values up to 102.

Tonight 24 Jul McHenry

Mostly cloudy. A chance of Thunderstorms in the evening. A chance of Showers. A slight chance of Thunderstorms after midnight. Lows around 70. Northwest Winds 5 to 10 Mph, becoming north after midnight. Chance of precipitation 50 percent.

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Port Barrington Temperature Statistics

July Temperature

Chicago / Wheeling, Pal-Waukee Airport (17.4 miles)

  • Lowest 18 July, 2025

    59.6 °F
  • Average July

    76 °F
  • Highest 5 July, 2025

    93.7 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (17.4 miles)

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  • Average Low 2020–2025

    44.1 °F
  • Average 2020–2025

    52.9 °F
  • Average High 2020–2025

    61.5 °F
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