River Forest Weather Forecast

    • 39
    • 41

    Rain

    • 38
    • 50

    Chance Rain

    • 45
    • 45

    Slight Chance Rain

    • 18
    • 50

    Slight Chance Rain

    • 14
    • 23

    Mostly Sunny

    • 21
    • 29

    Mostly Cloudy

Today 25 Dec Central Cook

Cloudy. Near steady temperature in the lower 40s. Northeast Winds around 10 Mph.

Tonight 25 Dec Central Cook

Cloudy. Rain Showers after midnight. Near steady temperature in the upper 30s. Southeast Winds 10 to 15 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

River Forest Temperature Statistics

December Temperature

Chicago, Chicago-O'Hare International Airport (6.8 miles)

  • Lowest 14 December, 2025

    -2 °F

  • Average December

    24.6 °F

  • Highest 18 December, 2025

    51.1 °F

Climate (2020–Present)

Chicago, Chicago-O'Hare International Airport (6.8 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    61.6 °F
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