Port Royal, PA Weather & Growing Conditions
Today
75°F
Patchy Fog then Mostly Sunny
Patchy fog before 10am. Mostly sunny, with a high near 75. Southeast wind 0 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Fog then Mostly Sunny | 0 to 6 mph SE | 1% |
| Tonight | 59°F | Light Rain | 3 mph SE | 93% |
| Thursday | 74°F | Light Rain | 1 to 5 mph SW | 82% |
| Thursday Night | 51°F | Chance Light Rain then Mostly Cloudy | 1 mph W | 26% |
| Friday | 68°F | Partly Sunny | 1 mph NW | 14% |
| Friday Night | 43°F | Partly Cloudy | 1 mph W | 9% |
| Saturday | 58°F | Slight Chance Light Rain | 2 to 7 mph W | 17% |
| Saturday Night | 37°F | Partly Cloudy | 6 mph W | 13% |
| Sunday | 58°F | Mostly Sunny | 3 to 7 mph NW | 5% |
| Sunday Night | 34°F | Partly Cloudy | 5 mph W | 7% |
| Monday | 58°F | Mostly Sunny | 3 to 8 mph W | 7% |
| Monday Night | 33°F | Mostly Clear | 5 mph W | 3% |
| Tuesday | 62°F | Sunny | 2 to 8 mph W | 2% |
| Tuesday Night | 33°F | Mostly Clear | 3 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Royal, PA
Last spring frost
Apr 21
First fall frost
Oct 24
Growing season
185 days
Hardiness zone
7a
Explore more for Port Royal, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Lewistown, Pa (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.