Chatham Weather Forecast

    • 40
    • 57

    Rain Showers

    • 31
    • 42

    Rain Showers

    • 41
    • 47

    Chance Rain Showers

    • 32
    • 50

    Breezy

    • 37
    • 45

    Rain Showers

    • 18
    • 46

    Rain Showers

    • 15
    • 26

    Mostly Cloudy

Today 10 Mar Central Cook

Mostly cloudy. Patchy fog. A chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Temperatures in the lower 40s. Northeast Winds around 10 Mph. Chance of precipitation 50 percent.

Tonight 10 Mar Central Cook

Patchy fog. Showers in the evening. Thunderstorms likely. Showers likely after midnight. Some Thunderstorms may produce heavy rainfall until early morning. Locally heavy rainfall possible late in the evening. Lows in the lower 40s. East Winds 10 to 15 Mph, becoming northwest after midnight. Chance of precipitation 90 percent.

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Chatham Temperature Statistics

March Temperature

Chicago, Chicago Midway Airport (7.5 miles)

  • Lowest 1 March, 2026

    26.1 °F

  • Average March

    42.5 °F

  • Highest 6 March, 2026

    73 °F

Climate (2021–Present)

Chicago, Chicago Midway Airport (7.5 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    62 °F
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