Westchester Weather Forecast
- 60
- 90
Mostly Sunny
- 63
- 92
Mostly Sunny
- 63
- 88
Chance Rain Showers
- 64
- 87
Chance Rain Showers
- 64
- 84
Chance Rain Showers
- 64
- 86
Chance Rain Showers
Today 17 Sep Sangamon
Sunny. Highs in the upper 80s. Northeast Winds around 5 Mph.
Tonight 17 Sep Sangamon
Mostly clear. Lows in the upper 50s. East Winds around 5 Mph.
Westchester Temperature Statistics
September Temperature
Springfield - Abraham Lincoln Capital Airport (6.2 miles)
Lowest 7 September, 2025
39.9 °FAverage September
67.1 °FHighest 13 September, 2025
97 °F
Climate (2020–Present)
Springfield - Abraham Lincoln Capital Airport (6.2 miles)
Average Low 2020–2025
44.8 °FAverage 2020–2025
55.1 °FAverage High 2020–2025
65 °F