Fountain Hill, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fountain Hill, a borough in Lehigh County, Pennsylvania.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Northeast wind around 0 mph.
7-day forecast for Fountain Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 64°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 83°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph E | 54% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely | 0 mph | 60% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 71% |
| Thursday Night | 71°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 71% |
| Friday | 88°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 55% |
| Friday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph W | 55% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 43% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 43% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 70°F | Mostly Clear | 0 to 5 mph SW | 12% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 16% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 16% |
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 Aug 4, 2026.