River Forest Weather Forecast

    • 80
    • 93

    Slight Chance Thunderstorms

    • 74
    • 97

    Thunderstorms Likely

    • 71
    • 82

    Rain Showers Likely

    • 72
    • 85

    Thunderstorms Likely

    • 72
    • 90

    Slight Chance Thunderstorms

    • 74
    • 91

    Slight Chance Thunderstorms

Today 23 Jul Central Cook

Partly cloudy. A slight chance of Showers and Thunderstorms late in the afternoon. Hot and humid. Highs in the mid 90s. South Winds 10 to 15 Mph. Chance of precipitation 20 percent. Heat index Values up to 105 in the afternoon.

Tonight 23 Jul Central Cook

Partly cloudy early in the Evening, then becoming mostly clear. Very warm and humid with Lows in the upper 70s. South Winds around 10 Mph. Heat index Values up to 101 early in the evening.

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River Forest Temperature Statistics

July Temperature

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

  • Lowest 17 July, 2025

    58.6 °F
  • Average July

    77.4 °F
  • Highest 3 July, 2025

    95.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.4 °F
  • Average 2020–2025

    53.4 °F
  • Average High 2020–2025

    61.7 °F
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