Starved Rock State Park Weather Forecast

    • 51
    • 65

    Partly Sunny

    • 62
    • 80

    Partly Sunny

    • 38
    • 79

    Rain Showers Likely

    • 33
    • 48

    Chance Rain/Snow

    • 37
    • 46

    Chance Rain Showers

    • 47
    • 63

    Chance Rain Showers

Today 29 Mar La Salle

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 Mar La Salle

Partly cloudy. Lows around 50. South Winds around 10 Mph.

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Starved Rock State Park Temperature Statistics

March Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 16 March, 2026

    17.1 °F
  • Average March

    46.2 °F
  • Highest 26 March, 2026

    81.9 °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

    62.5 °F
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