Starved Rock State Park Weather Forecast

    • 76
    • 85

    Increasing Clouds

    • 76
    • 92

    Partly Sunny

    • 77
    • 92

    Mostly Sunny

    • 76
    • 93

    Mostly Sunny

    • 75
    • 93

    Chance Rain Showers

    • 73
    • 92

    Chance Thunderstorms

Today 28 Jun La Salle

Partly cloudy. Humid with Highs in the mid 80s. Southeast Winds 5 to 10 Mph, increasing to 10 to 15 Mph in the afternoon.

Tonight 28 Jun La Salle

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the mid 70s. South Winds around 10 Mph.

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Starved Rock State Park Temperature Statistics

June Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 3 June, 2026

    51.8 °F

  • Average June

    70.6 °F

  • Highest 6 June, 2026

    91.4 °F

Climate (2021–2026)

Illinois Valley Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    62.6 °F
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