Plainfield, PA Weather & Growing Conditions
This Afternoon
72°F
Mostly Sunny
Mostly sunny, with a high near 72. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 3 mph SE | 1% |
| Tonight | 48°F | Mostly Clear then Areas Of Fog | 1 mph NE | 1% |
| Wednesday | 75°F | Areas Of Fog then Mostly Sunny | 0 to 9 mph S | 2% |
| Wednesday Night | 60°F | Mostly Cloudy then Rain Showers | 6 mph SE | 82% |
| Thursday | 74°F | Rain Showers | 2 to 7 mph S | 76% |
| Thursday Night | 56°F | Chance Rain Showers | 1 mph SW | 41% |
| Friday | 69°F | Chance Rain Showers | 2 mph NW | 44% |
| Friday Night | 46°F | Chance Rain Showers then Partly Cloudy | 2 mph NW | 44% |
| Saturday | 63°F | Slight Chance Rain Showers | 3 to 8 mph NW | 16% |
| Saturday Night | 38°F | Partly Cloudy | 2 to 6 mph NW | 10% |
| Sunday | 60°F | Mostly Sunny | 6 mph W | 8% |
| Sunday Night | 36°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph W | 19% |
| Monday | 60°F | Slight Chance Rain Showers | 6 to 10 mph W | 24% |
| Monday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph W | 20% |
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 Nov 4, 2026.