Plainfield, PA Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 3 mph E | 0% |
| Tonight | 65°F | Mostly Cloudy then Patchy Fog | 0 to 3 mph E | 5% |
| Wednesday | 83°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph E | 41% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely | 0 to 3 mph E | 61% |
| Thursday | 88°F | Patchy Fog then Showers And Thunderstorms Likely | 0 to 5 mph SW | 61% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 3 mph SW | 61% |
| Friday | 88°F | Partly Sunny then Showers And Thunderstorms Likely | 1 to 5 mph SW | 58% |
| Friday Night | 68°F | Showers And Thunderstorms Likely | 0 to 3 mph W | 58% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 50% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 3 mph W | 50% |
| Sunday | 88°F | Mostly Sunny | 1 to 5 mph W | 14% |
| Sunday Night | 69°F | Partly Cloudy | 3 mph SW | 14% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 19% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 19% |
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 Aug 4, 2026.