Slatington, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slatington, a borough in Lehigh County, Pennsylvania.
Tonight
48°F
Partly Cloudy
Partly cloudy, with a low around 48. Southwest wind around 0 mph.
7-day forecast for Slatington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Partly Cloudy | 0 mph | 2% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 0 to 10 mph S | 2% |
| Wednesday Night | 57°F | Mostly Cloudy then Slight Chance Light Rain | 0 to 5 mph S | 22% |
| Thursday | 71°F | Light Rain | 5 to 10 mph S | 79% |
| Thursday Night | 58°F | Light Rain Likely | 0 to 5 mph SW | 61% |
| Friday | 69°F | Light Rain Likely | 0 to 5 mph NW | 61% |
| Friday Night | 49°F | Chance Light Rain | 0 to 5 mph NW | 54% |
| Saturday | 64°F | Slight Chance Light Rain | 5 to 10 mph NW | 21% |
| Saturday Night | 40°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 17% |
| Sunday | 60°F | Mostly Sunny | 5 mph W | 12% |
| Sunday Night | 38°F | Slight Chance Light Rain | 5 mph W | 20% |
| Monday | 59°F | Chance Light Rain | 5 to 15 mph NW | 25% |
| Monday Night | 37°F | Slight Chance Light Rain | 5 to 10 mph W | 23% |
| Tuesday | 61°F | Slight Chance Light Rain then Mostly Sunny | 5 to 15 mph W | 16% |
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 Nov 4, 2026.