Slatedale, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slatedale, a community in Lehigh County, Pennsylvania.
Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. East wind around 5 mph.
7-day forecast for Slatedale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 5 mph E | 2% |
| Tonight | 56°F | Chance Rain Showers | 5 mph SE | 42% |
| Sunday | 69°F | Rain Showers | 5 mph S | 91% |
| Sunday Night | 55°F | Showers And Thunderstorms | 5 to 10 mph W | 99% |
| Monday | 69°F | Partly Sunny | 5 to 10 mph NE | 8% |
| Monday Night | 49°F | Mostly Cloudy then Chance Rain Showers | 5 to 10 mph NE | 31% |
| Tuesday | 61°F | Chance Rain Showers | 10 mph NE | 33% |
| Tuesday Night | 47°F | Chance Rain Showers | 10 to 15 mph NE | 29% |
| Wednesday | 62°F | Chance Rain Showers | 15 mph NE | 27% |
| Wednesday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday Night | 48°F | Chance Rain Showers | 10 mph NE | 32% |
| Friday | 66°F | Slight Chance Rain Showers | 10 mph N | 22% |
| Friday Night | 49°F | Slight Chance Rain Showers | 10 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Slatedale (40.744, -75.659). Updated through the day.
Growing snapshot for Slatedale
Last spring frost
Apr 21
First fall frost
Oct 23
Growing season
184 days
Hardiness zone
6b
More local growing data for Slatedale: nearby ZIP 18079 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Lehighton 1Ssw, Pa (5.8 mi from Slatedale). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.