Starved Rock State Park Weather Forecast

    • 53
    • 71

    Rain Showers Likely

    • 48
    • 69

    Rain Showers

    • 38
    • 59

    Chance Rain Showers

    • 54
    • 64

    Chance Rain Showers

    • 63
    • 79

    Chance Rain Showers

    • 58
    • 79

    Rain Showers Likely

Today 8 Apr La Salle

Mostly cloudy in the Morning, then becoming partly cloudy. Breezy. Highs in the upper 60s. South Winds 15 to 25 Mph with Gusts up to 35 Mph.

Tonight 8 Apr La Salle

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers late in the evening. Showers likely with a slight chance of Thunderstorms after midnight. Breezy with Lows in the lower 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 70 percent.

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Starved Rock State Park Temperature Statistics

April Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 5 April, 2026

    35.6 °F

  • Average April

    47.6 °F

  • Highest 2 April, 2026

    72 °F

Climate (2021–Present)

Illinois Valley Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    62.4 °F
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