Starved Rock State Park Weather Forecast

    • 69
    • 91

    Chance Thunderstorms

    • 70
    • 84

    Rain Showers Likely

    • 69
    • 85

    Rain Showers

    • 73
    • 88

    Chance Thunderstorms

    • 73
    • 95

    Slight Chance Thunderstorms

    • 70
    • 93

    Chance Thunderstorms

    • 66
    • 91

    Chance Thunderstorms

Today 6 Jun La Salle

Partly cloudy. A slight chance of Showers and Thunderstorms in the late morning and early afternoon. A chance of Showers and Thunderstorms late. Highs in the upper 80s. West Winds around 5 Mph. Chance of precipitation 50 percent.

Tonight 6 Jun La Salle

Mostly cloudy. A chance of Showers and Thunderstorms. Lows in the upper 60s. Southeast Winds around 5 Mph. Chance of precipitation 50 percent.

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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

    71 °F

  • Highest 4 June, 2026

    87.8 °F

Climate (2021–Present)

Illinois Valley Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    62.6 °F
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