Harman US

Chestnut Hill, PA Weather & Growing Conditions

Overnight
46°F
Patchy Fog
Patchy fog between 3am and 5am. Partly cloudy, with a low around 46. Southwest wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 46°F Patchy Fog 0 mph 2%
Wednesday 73°F Patchy Fog then Mostly Sunny 0 to 10 mph SW 3%
Wednesday Night 56°F Mostly Cloudy 0 to 5 mph S 11%
Thursday 71°F Light Rain Likely 5 to 10 mph S 70%
Thursday Night 59°F Light Rain Likely 0 to 5 mph SW 66%
Friday 69°F Light Rain Likely 0 to 5 mph W 66%
Friday Night 48°F Light Rain Likely 0 to 5 mph N 61%
Saturday 65°F Slight Chance Light Rain 0 to 10 mph NW 21%
Saturday Night 39°F Slight Chance Light Rain 5 mph NW 17%
Sunday 61°F Slight Chance Light Rain then Mostly Sunny 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 to 10 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). Updated through the day.

Growing snapshot for Chestnut Hill, PA

Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a

Explore more for Chestnut Hill, PA: full frost dates · planting calendar · Pennsylvania frost dates

Climate data from the nearest NOAA station, Phillipsburg-Easton Brg, Nj (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.