Chatham Weather Forecast

    • 8
    • 19

    Increasing Clouds

    • 24
    • 28

    Chance Snow

    • 21
    • 31

    Chance Snow

    • 15
    • 30

    Slight Chance Snow

    • 18
    • 24

    Chance Snow

    • 25
    • 34

    Chance Rain/Snow

Today 4 Dec Central Cook

Sunny. Cold. Highs around 19. Northwest Winds 5 to 10 Mph, becoming west in the afternoon.

Tonight 4 Dec Central Cook

Clear in the Evening, then becoming partly cloudy. Very cold with Lows around 3 above in the Suburbs, but around 8 above Downtown. Southwest Winds 5 to 10 Mph. Wind chill Values as low as 10 below.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

December Temperature

Chicago, Chicago Midway Airport (7.5 miles)

  • Lowest 1 December, 2025

    19 °F

  • Average December

    24.9 °F

  • Highest 1 December, 2025

    30 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    61.9 °F
Get WillyWeather+ to remove ads