Downers Grove Weather Forecast

    • 73
    • 82

    Rain Showers

    • 75
    • 88

    Slight Chance Thunderstorms

    • 75
    • 90

    Slight Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 72
    • 89

    Slight Chance Thunderstorms

    • 70
    • 87

    Chance Rain Showers

Today 30 Aug DuPage

Scattered Showers early in the afternoon. A slight chance of Thunderstorms. Numerous Showers late. Breezy. Near steady temperature in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of precipitation 60 percent.

Tonight 30 Aug DuPage

Mostly cloudy. Scattered Showers with a slight chance of Thunderstorms early in the evening. Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Downers Grove Temperature Statistics

August Temperature

Chicago, Chicago-O'Hare International Airport (13 miles)

  • Lowest 24 August, 2026

    58.6 °F

  • Average August

    74.7 °F

  • Highest 7 August, 2026

    87.7 °F

Climate (2021–2026)

Chicago, Chicago-O'Hare International Airport (13 miles)

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

  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.9 °F
Get WillyWeather+ to remove ads