Chestnut Hill, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chestnut Hill, a community in Northampton County, Pennsylvania.
Overnight
47°F
Patchy Fog
Patchy fog between 4am and 5am. Mostly clear, with a low around 47. South wind around 0 mph.
7-day forecast for Chestnut Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Fog | 0 mph | 3% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 3% |
| Wednesday Night | 57°F | Mostly Cloudy | 5 mph S | 10% |
| Thursday | 71°F | Light Rain Likely | 5 to 10 mph S | 69% |
| Thursday Night | 59°F | Light Rain Likely | 0 to 5 mph SW | 67% |
| Friday | 69°F | Light Rain Likely | 0 to 5 mph W | 67% |
| Friday Night | 49°F | Light Rain Likely | 0 to 5 mph N | 63% |
| Saturday | 65°F | Slight Chance Light Rain | 0 to 5 mph NW | 22% |
| Saturday Night | 39°F | Slight Chance Light Rain | 5 mph NW | 17% |
| Sunday | 61°F | Slight Chance Light Rain then Mostly Sunny | 0 to 5 mph W | 15% |
| Sunday Night | 36°F | Slight Chance Light Rain | 0 to 5 mph W | 18% |
| Monday | 60°F | Chance Light Rain | 5 to 15 mph NW | 25% |
| Monday Night | 35°F | Slight Chance Light Rain | 5 mph W | 22% |
| Tuesday | 62°F | Slight Chance Light Rain then Mostly Sunny | 5 to 15 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Chestnut Hill (40.723, -75.207). Updated through the day.
Growing snapshot for Chestnut Hill
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a
More local growing data for Chestnut Hill: nearby ZIP 18040 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Phillipsburg-Easton Brg, Nj (3.7 mi from Chestnut Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.