Plainfield, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainfield, a community in Cumberland County, Pennsylvania.
This Afternoon
72°F
Mostly Sunny
Mostly sunny, with a high near 72. Southeast wind around 3 mph.
7-day forecast for Plainfield
| 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) 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
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Carlisle
Carlisle Barracks
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Enola
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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 3, 2026.