Plainfield, PA Weather & Growing Conditions
Tonight
52°F
Mostly Clear then Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 52. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear then Patchy Fog | 5 mph N | 0% |
| Saturday | 75°F | Patchy Fog then Mostly Sunny | 3 mph E | 3% |
| Saturday Night | 63°F | Chance Rain Showers | 3 to 7 mph SE | 37% |
| Sunday | 77°F | Showers And Thunderstorms | 3 to 7 mph S | 96% |
| Sunday Night | 59°F | Showers And Thunderstorms | 3 to 7 mph NW | 96% |
| Monday | 69°F | Chance Rain Showers | 7 mph NE | 36% |
| Monday Night | 55°F | Rain Showers Likely | 8 mph NE | 62% |
| Tuesday | 61°F | Rain Showers Likely | 8 mph E | 68% |
| Tuesday Night | 50°F | Rain Showers Likely | 9 mph NE | 68% |
| Wednesday | 59°F | Chance Rain Showers | 8 mph NE | 54% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms | 7 mph NE | 54% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 6 mph NE | 50% |
| Thursday Night | 50°F | Chance Rain Showers | 1 to 5 mph N | 41% |
| Friday | 67°F | Slight Chance Rain Showers | 2 to 6 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plainfield, PA
Last spring frost
Apr 23
First fall frost
Oct 18
Growing season
177 days
Hardiness zone
7a
Explore more for Plainfield, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Carlisle Wtp, Pa (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.