West Middlesex, PA Weather & Growing Conditions
This Afternoon
77°F
Sunny
Sunny. High near 77, with temperatures falling to around 71 in the afternoon. South wind 7 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 7 to 10 mph S | 1% |
| Tonight | 55°F | Mostly Clear | 5 to 8 mph SE | 3% |
| Wednesday | 74°F | Partly Sunny then Chance Light Rain | 8 to 12 mph S | 37% |
| Wednesday Night | 58°F | Light Rain | 8 to 15 mph S | 100% |
| Thursday | 67°F | Mostly Sunny | 7 to 13 mph SW | 12% |
| Thursday Night | 45°F | Partly Cloudy | 1 to 6 mph SW | 2% |
| Friday | 62°F | Partly Sunny then Slight Chance Light Rain | 1 to 6 mph W | 18% |
| Friday Night | 42°F | Chance Light Rain | 2 to 6 mph NW | 30% |
| Saturday | 54°F | Chance Light Rain | 5 to 10 mph W | 34% |
| Saturday Night | 35°F | Chance Light Rain then Mostly Cloudy | 2 to 6 mph W | 34% |
| Sunday | 54°F | Partly Sunny then Slight Chance Light Rain | 2 to 9 mph SW | 20% |
| Sunday Night | 33°F | Slight Chance Light Rain | 6 mph W | 20% |
| Monday | 56°F | Chance Light Rain | 6 to 12 mph W | 30% |
| Monday Night | 35°F | Chance Light Rain then Partly Cloudy | 8 mph SW | 30% |
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 Nov 3, 2026.