Illinois City Weather Forecast
- 34
- 52
Sunny
- 30
- 54
Becoming Sunny
- 48
- 59
Mostly Sunny
- 52
- 76
Mostly Sunny
- 59
- 79
Partly Sunny
- 57
- 80
Rain Showers Likely
- 43
- 68
Chance Rain Showers
Today 18 Apr Rock Island
Sunny. Much cooler with Highs in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 18 Apr Rock Island
Clear. Widespread frost after midnight. Lows in the mid 30s. West Winds 10 to 15 Mph.
Illinois City Temperature Statistics
April Temperature
Muscatine (13 miles)
Lowest 7 April, 2026
33.8 °FAverage April
54 °FHighest 13 April, 2026
80.6 °F
Climate (2021–Present)
Muscatine (13 miles)
Average Low 2021–2026
42.4 °FAverage 2021–2026
53 °FAverage High 2021–2026
63.4 °F