Clay, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clay, a community in Lancaster County, Pennsylvania.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 6 mph.
7-day forecast for Clay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 6 mph S | 2% |
| Tonight | 50°F | Partly Cloudy then Patchy Fog | 2 to 6 mph SE | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 1 to 13 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Chance Rain Showers | 6 to 9 mph S | 41% |
| Thursday | 73°F | Rain Showers | 8 to 12 mph S | 86% |
| Thursday Night | 60°F | Rain Showers | 1 to 7 mph SW | 80% |
| Friday | 70°F | Rain Showers Likely | 3 mph NW | 70% |
| Friday Night | 49°F | Rain Showers Likely | 5 mph NW | 56% |
| Saturday | 64°F | Slight Chance Rain Showers | 5 to 13 mph NW | 17% |
| Saturday Night | 40°F | Slight Chance Rain Showers then Partly Cloudy | 7 to 10 mph NW | 16% |
| Sunday | 60°F | Mostly Sunny | 6 to 10 mph W | 9% |
| Sunday Night | 39°F | Slight Chance Rain Showers | 8 mph W | 22% |
| Monday | 60°F | Slight Chance Rain Showers | 9 to 18 mph NW | 23% |
| Monday Night | 37°F | Slight Chance Rain Showers | 6 to 12 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Clay (40.219, -76.239). Updated through the day.
Growing snapshot for Clay
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
186 days
Hardiness zone
7a
More local growing data for Clay: nearby ZIP 17543 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Columbia
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Denver
East Earl
East Petersburg
Elizabethtown
Ephrata
Falmouth
Farmersville
Fivepointville
Gap
Georgetown
Goodville
Gordonville
Hinkletown
Hopeland
Intercourse
Kirkwood
Lampeter
Lancaster
Climate data from the nearest NOAA station, Lancaster Ap, Pa (4.2 mi from Clay). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.