Starved Rock State Park Weather Forecast

    • -2
    • 14

    Gradual Clearing

    • 4
    • 10

    Cold

    • 0
    • 18

    Partly Sunny

    • -1
    • 16

    Partly Sunny

    • 3
    • 15

    Partly Sunny

    • 3
    • 18

    Partly Sunny

Today 25 Jan La Salle

Cloudy. A chance of snow late in the morning. Snow accumulation around an inch possible. Highs around 14. North Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation 50 percent. Wind chill Values as low as 11 below late in the morning.

Tonight 25 Jan La Salle

Partly cloudy in the Evening, then clearing. Lows around 3 below. Northwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Wind chill Values as low as 20 below.

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Starved Rock State Park Temperature Statistics

January Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 23 January, 2026

    -7.6 °F

  • Average January

    27.3 °F

  • Highest 8 January, 2026

    62.6 °F

Climate (2021–Present)

Illinois Valley Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    62.2 °F
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