Chatham Weather Forecast

    • 65
    • 72

    Gradual Clearing

    • 65
    • 73

    Partly Sunny

    • 67
    • 79

    Mostly Sunny

    • 66
    • 80

    Chance Thunderstorms

    • 67
    • 78

    Chance Thunderstorms

    • 69
    • 82

    Slight Chance Thunderstorms

Today 2 Aug Central Cook

Mostly cloudy in the Morning, then clearing. Highs in the lower 70s. North Winds 10 to 15 Mph, increasing to 15 to 20 Mph in the afternoon.

Tonight 2 Aug Central Cook

Partly cloudy. Lows in the mid 60s. North Winds 10 to 15 Mph, becoming northeast 5 to 10 Mph after midnight.

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Chatham Temperature Statistics

August Temperature

Chicago, Chicago Midway Airport (7.5 miles)

  • Lowest

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  • Average August

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Climate (2021–2026)

Chicago, Chicago Midway Airport (7.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    62 °F
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