Starved Rock State Park Weather Forecast

    • 55
    • 74

    Decreasing Clouds

    • 58
    • 76

    Partly Sunny

    • 61
    • 78

    Partly Sunny

    • 71
    • 83

    Partly Sunny

    • 72
    • 92

    Partly Sunny

    • 69
    • 90

    Slight Chance Thunderstorms

Today 22 Jul La Salle

Mostly sunny in the Morning, then becoming partly cloudy. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 22 Jul La Salle

Mostly clear. Lows in the mid 50s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Starved Rock State Park Temperature Statistics

July Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 20 July, 2026

    62.6 °F

  • Average July

    78.6 °F

  • Highest 2 July, 2026

    93.2 °F

Climate (2021–2026)

Illinois Valley Regional Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    62.7 °F
Get WillyWeather+ to remove ads