West Middlesex, PA Weather & Growing Conditions
Today
75°F
Slight Chance Rain Showers then Mostly Cloudy
A slight chance of rain showers before 11am. Mostly cloudy, with a high near 75. Southeast wind around 6 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph SE | 18% |
| Tonight | 62°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph SE | 70% |
| Sunday | 74°F | Showers And Thunderstorms | 6 to 9 mph SW | 90% |
| Sunday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 10 mph N | 52% |
| Monday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph NE | 15% |
| Monday Night | 50°F | Chance Rain Showers | 12 mph NE | 48% |
| Tuesday | 62°F | Chance Rain Showers | 12 to 15 mph E | 48% |
| Tuesday Night | 49°F | Rain Showers Likely | 16 mph E | 58% |
| Wednesday | 62°F | Rain Showers Likely | 13 to 16 mph E | 58% |
| Wednesday Night | 50°F | Showers And Thunderstorms Likely | 10 to 15 mph E | 62% |
| Thursday | 65°F | Showers And Thunderstorms Likely | 8 to 12 mph E | 59% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 3 to 8 mph E | 20% |
| Friday | 68°F | Slight Chance Rain Showers | 5 to 8 mph NE | 17% |
| Friday Night | 48°F | Partly Cloudy | 3 to 8 mph NE | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Middlesex, PA
Last spring frost
Apr 30
First fall frost
Oct 23
Growing season
175 days
Hardiness zone
6a
Explore more for West Middlesex, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, New Castle 1 N, Pa (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.