Gillen Airport Weather Forecast
- 59
- 91
Mostly Sunny
- 61
- 86
Mostly Sunny
- 63
- 90
Chance Rain Showers
- 61
- 82
Chance Rain Showers
- 64
- 84
Chance Rain Showers
- 64
- 82
Chance Rain Showers
- 60
- 83
Chance Thunderstorms
Today 16 Sep Warren
Sunny, hot with Highs around 90. East Winds around 5 Mph.
Tonight 16 Sep Warren
Mostly clear. Areas of fog after midnight. Lows in the upper 50s. East Winds around 5 Mph.
Gillen Airport Temperature Statistics
September Temperature
Galesburg Municipal Airport (15.5 miles)
Lowest 7 September, 2025
39.6 °FAverage September
64.4 °FHighest 14 September, 2025
95.2 °F
Climate (2020–Present)
Galesburg Municipal Airport (15.5 miles)
Average Low 2020–2025
41.2 °FAverage 2020–2025
51.3 °FAverage High 2020–2025
61.5 °F