Fountain Hill, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fountain Hill, a borough in Lehigh County, Pennsylvania.
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. East wind 0 to 5 mph.
7-day forecast for Fountain Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Tonight | 58°F | Mostly Cloudy then Chance Rain Showers | 5 mph SE | 25% |
| Sunday | 71°F | Rain Showers | 5 mph S | 96% |
| Sunday Night | 56°F | Showers And Thunderstorms | 5 to 10 mph NW | 88% |
| Monday | 68°F | Partly Sunny | 5 to 10 mph NE | 11% |
| 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 | 48°F | Chance Rain Showers | 10 mph NE | 32% |
| Wednesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Wednesday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday Night | 48°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Friday | 65°F | Slight Chance Rain Showers | 10 mph N | 24% |
| Friday Night | 49°F | Slight Chance Rain Showers | 5 to 10 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Fountain Hill (40.603, -75.396). Updated through the day.
Growing snapshot for Fountain Hill
Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
7a
More local growing data for Fountain Hill: nearby ZIP 18018 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Allentown Intl Ap, Pa (3.2 mi from Fountain Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.