Slatington, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slatington, a borough in Lehigh County, Pennsylvania.
This Afternoon
80°F
Mostly Sunny
Mostly sunny, with a high near 80. North wind around 10 mph.
7-day forecast for Slatington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 52°F | Mostly Clear | 5 to 10 mph N | 0% |
| Saturday | 71°F | Mostly Sunny | 5 mph E | 1% |
| Saturday Night | 58°F | Rain Showers Likely | 5 mph SE | 66% |
| Sunday | 69°F | Rain Showers | 5 mph SE | 97% |
| Sunday Night | 57°F | Patchy Fog | 0 to 5 mph NW | 97% |
| Monday | 66°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Tuesday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Wednesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Wednesday Night | 48°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 40% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 37% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 33% |
Forecast source: National Weather Service (api.weather.gov) for Slatington (40.754, -75.611). Updated through the day.
Growing snapshot for Slatington
Last spring frost
Apr 21
First fall frost
Oct 23
Growing season
184 days
Hardiness zone
6b
More local growing data for Slatington: nearby ZIP 18080 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Lehighton 1Ssw, Pa (7 mi from Slatington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.