West Sister Weather Forecast
- 44
- 56
Increasing Clouds
- 43
- 46
Chance Rain Showers
- 35
- 48
Rain
- 34
- 45
Partly Sunny
- 40
- 43
Slight Chance Rain Showers
- 40
- 50
Slight Chance Rain Showers
- 42
- 51
Partly Sunny
Today 17 Apr Coastal York
Patchy fog this morning. Mostly cloudy with a 50 percent chance of Showers. Highs in the lower 60s. Light and variable Winds.
Tonight 17 Apr Coastal York
Mostly clear this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 40s. Light and variable Winds.
West Sister Temperature Statistics
April Temperature
Pease Air Force Base / Portsmouth (6.8 miles)
Lowest 8 April, 2026
26.2 °FAverage April
45.1 °FHighest 13 April, 2026
70.3 °F
Climate (2021–Present)
Pease Air Force Base / Portsmouth (6.8 miles)
Average Low 2021–2026
42.3 °FAverage 2021–2026
50.6 °FAverage High 2021–2026
59.1 °F