Plainfield, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainfield, a community in Cumberland County, Pennsylvania.
Overnight
45°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 45. Wind around 0 mph.
7-day forecast for Plainfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Patchy Fog | 0 mph | 0% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 0 to 9 mph S | 1% |
| Wednesday Night | 60°F | Mostly Cloudy then Light Rain | 3 to 7 mph SE | 80% |
| Thursday | 75°F | Light Rain | 3 to 8 mph S | 78% |
| Thursday Night | 54°F | Chance Light Rain then Mostly Cloudy | 2 mph SW | 31% |
| Friday | 69°F | Slight Chance Light Rain | 1 mph NW | 18% |
| Friday Night | 45°F | Partly Cloudy | 2 mph NW | 12% |
| Saturday | 60°F | Mostly Sunny | 3 to 9 mph W | 12% |
| Saturday Night | 38°F | Partly Cloudy | 5 to 8 mph W | 12% |
| Sunday | 59°F | Mostly Sunny | 5 to 8 mph NW | 4% |
| Sunday Night | 36°F | Partly Cloudy | 6 mph W | 5% |
| Monday | 59°F | Sunny | 6 to 10 mph W | 5% |
| Monday Night | 34°F | Mostly Clear | 6 mph W | 4% |
| Tuesday | 64°F | Sunny | 5 to 9 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Plainfield (40.201, -77.283). Updated through the day.
Growing snapshot for Plainfield
Last spring frost
Apr 23
First fall frost
Oct 18
Growing season
177 days
Hardiness zone
7a
More local growing data for Plainfield: nearby ZIP 17081 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Boiling Springs
Camp Hill
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Carlisle Barracks
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Idaville
Lemoyne
Lower Allen
Marysville
Mechanicsburg
Messiah College
Mount Holly Springs
New Kingstown
Newburg
Newville
Schlusser
Shippensburg
Shippensburg University
Shiremanstown
Climate data from the nearest NOAA station, Carlisle Wtp, Pa (5.2 mi from Plainfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.