Starved Rock State Park Weather Forecast
- 45
- 66
Rain Showers Likely
- 38
- 62
Mostly Sunny
- 54
- 69
Slight Chance Thunderstorms
- 67
- 83
Chance Thunderstorms
- 46
- 77
Chance Rain Showers
- 49
- 67
Partly Sunny
- 49
- 66
Chance Rain Showers
Today 25 Apr La Salle
Mostly cloudy. Isolated Showers. Highs in the mid 60s. North Winds 10 to 15 Mph. Chance of precipitation 20 percent.
Tonight 25 Apr La Salle
Mostly cloudy. Lows in the mid 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.
Starved Rock State Park Temperature Statistics
April Temperature
Illinois Valley Regional Airport (7.5 miles)
Lowest 8 April, 2025
25.5 °FAverage April
50.7 °FHighest 23 April, 2025
78.8 °F
Climate (2020–Present)
Illinois Valley Regional Airport (7.5 miles)
Average Low 2020–2025
43.1 °FAverage 2020–2025
52.5 °FAverage High 2020–2025
61.9 °F