Illiopolis Weather Forecast
- 54
- 69
Chance Rain Showers
- 51
- 78
Rain Showers
- 42
- 59
Rain Showers
- 41
- 58
Chance Rain Showers
- 46
- 61
Chance Rain Showers
- 46
- 65
Chance Rain Showers
- 51
- 72
Mostly Sunny
Today 3 May Sangamon
Partly sunny with a slight chance of Showers and Thunderstorms. Breezy and not as cool. Near steady temperature in the upper 60s. Southwest Winds 20 to 25 Mph with Gusts up to 40 Mph. Chance of rain 20 percent.
Tonight 3 May Sangamon
Patchy blowing dust this evening. Mostly cloudy with a slight chance of Showers and Thunderstorms this Evening, then partly cloudy with a chance of Showers and Thunderstorms after midnight. Not as cool with Lows in the mid 50s. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent.
Illiopolis Temperature Statistics
May Temperature
Decatur Airport (19.3 miles)
Lowest
–Average May
–Highest
–
Climate (2021–Present)
Decatur Airport (19.3 miles)
Average Low 2021–2026
45.3 °FAverage 2021–2026
55.5 °FAverage High 2021–2026
65.5 °F