William Penn State Forest Weather Forecast
- 1
- 20
Mostly Sunny
- 0
- 17
Increasing Clouds
- 7
- 18
Chance Snow
- 12
- 22
Mostly Cloudy
- 14
- 29
Partly Sunny
- 15
- 30
Partly Sunny
- 13
- 30
Chance Snow
Today 29 Jan Western Chester
Sunny this Morning, then becoming partly sunny. Cold with Highs around 17. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 15 below this morning.
Tonight 29 Jan Western Chester
Partly cloudy this Evening, then becoming mostly clear. Cold with Lows around zero. West Winds 5 to 10 Mph. Wind chill Values as low as 12 below.
William Penn State Forest Temperature Statistics
January Temperature
Phillips Army Air Field / Aberdeen (18 miles)
Lowest 21 January, 2026
10.2 °FAverage January
37.6 °FHighest 7 January, 2026
60.8 °F
Climate (2021–Present)
Phillips Army Air Field / Aberdeen (18 miles)
Average Low 2021–2026
47.4 °FAverage 2021–2026
57.5 °FAverage High 2021–2026
65.4 °F