Starved Rock State Park Weather Forecast

    • 55
    • 73

    Mostly Sunny

    • 43
    • 76

    Rain Showers

    • 28
    • 51

    Rain Showers Likely

    • 39
    • 47

    Chance Rain Showers

    • 30
    • 52

    Mostly Cloudy

    • 34
    • 47

    Rain/Snow Likely

Today 9 Mar La Salle

Sunny. Highs in the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Mar La Salle

Partly cloudy. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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Starved Rock State Park Temperature Statistics

March Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 1 March, 2026

    18.5 °F

  • Average March

    41.8 °F

  • Highest 6 March, 2026

    70.2 °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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