Delta, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a borough in York County, Pennsylvania.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind around 5 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 mph E | 0% |
| Tonight | 66°F | Mostly Cloudy then Patchy Fog | 3 mph SE | 14% |
| Wednesday | 84°F | Patchy Fog | 2 to 7 mph SE | 75% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 6 mph S | 41% |
| Thursday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph S | 48% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 48% |
| Friday | 89°F | Mostly Sunny then Showers And Thunderstorms Likely | 6 mph SW | 55% |
| Friday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 to 5 mph W | 55% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph W | 46% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 46% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 15% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 22% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph W | 22% |
Forecast source: National Weather Service (api.weather.gov) for Delta (39.727, -76.327). Updated through the day.
Growing snapshot for Delta
Last spring frost
Apr 3
First fall frost
Nov 6
Growing season
217 days
Hardiness zone
7a
More local growing data for Delta: nearby ZIP 17314 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Cross Roads
Dallastown
Dillsburg
Dover
East Prospect
East York
Emigsville
Fawn Grove
Felton
Franklintown
Glen Rock
Goldsboro
Grantley
Hallam
Hanover
Jacobus
Jefferson
Lewisberry
Loganville
Manchester
Mount Royal
Mount Wolf
New Freedom
New Market
New Salem
North York
Parkville
Pennville
Pleasureville
Queens Gate
Climate data from the nearest NOAA station, Conowingo Dam, Md (10.3 mi from Delta). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.