Forsythe Woods County Forest Preserve Weather Forecast

    • 51
    • 69

    Mostly Cloudy

    • 54
    • 72

    Rain Showers Likely

    • 55
    • 74

    Slight Chance Thunderstorms

    • 55
    • 79

    Chance Rain Showers

    • 58
    • 83

    Mostly Cloudy

    • 61
    • 85

    Chance Rain Showers

    • 62
    • 84

    Chance Thunderstorms

Today 21 May Southern Will

Mostly cloudy. Temperatures in the mid 60s. Northeast Winds 10 to 15 Mph.

Tonight 21 May Southern Will

Mostly cloudy. Lows in the lower 50s. East Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Forsythe Woods County Forest Preserve Temperature Statistics

May Temperature

Joliet Regional Airport (14.9 miles)

  • Lowest 2 May, 2026

    29.8 °F

  • Average May

    59.4 °F

  • Highest 17 May, 2026

    86.9 °F

Climate (2021–Present)

Joliet Regional Airport (14.9 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.4 °F
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