Chatham Weather Forecast

    • 18
    • 32

    Snow

    • 17
    • 25

    Slight Chance Snow

    • 35
    • 38

    Rain

    • 23
    • 38

    Slight Chance Snow

    • 14
    • 29

    Chance Snow

    • 5
    • 21

    Slight Chance Snow

Today 7 Dec Central Cook

Snow in the Morning, then a chance of snow Showers in the afternoon. Snow accumulation around an inch. Highs around 30. North Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation near 100 percent.

Tonight 7 Dec Central Cook

Mostly cloudy. A chance of snow Showers, mainly in the evening. Little or no additional snow accumulation. Lows around 15 in the Suburbs, but around 19 Downtown. Near steady temperature around 19. Northeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph after midnight. Chance of precipitation 50 percent.

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Chatham Temperature Statistics

December Temperature

Chicago, Chicago Midway Airport (7.5 miles)

  • Lowest 4 December, 2025

    9 °F

  • Average December

    21.2 °F

  • Highest 1 December, 2025

    30 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (7.5 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    61.9 °F
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