Starved Rock State Park Weather Forecast

    • 72
    • 87

    Chance Thunderstorms

    • 72
    • 92

    Rain Showers

    • 61
    • 90

    Rain Showers

    • 61
    • 77

    Mostly Sunny

    • 64
    • 85

    Chance Thunderstorms

    • 57
    • 80

    Slight Chance Thunderstorms

    • 55
    • 75

    Chance Rain Showers

Today 9 Jun La Salle

Mostly cloudy late in the Morning, then becoming partly cloudy. A slight chance of Showers. A slight chance of Thunderstorms in the afternoon. Highs in the upper 80s. West Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 9 Jun La Salle

Mostly clear in the Evening, then becoming partly cloudy. A slight chance of Showers early in the evening. A chance of Showers and Thunderstorms after Midnight, then a slight chance of Showers and Thunderstorms late. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Starved Rock State Park Temperature Statistics

June Temperature

Illinois Valley Regional Airport (7.5 miles)

  • Lowest 3 June, 2026

    51.8 °F

  • Average June

    73.4 °F

  • Highest 6 June, 2026

    91.4 °F

Climate (2021–Present)

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

    62.6 °F
Get WillyWeather+ to remove ads