Harman US

Chapman, PA Weather & Growing Conditions

This Afternoon
67°F
Partly Sunny
Partly sunny, with a high near 67. Southwest wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 67°F Partly Sunny 5 mph SW 1%
Tonight 47°F Partly Cloudy then Patchy Fog 0 to 5 mph SW 3%
Wednesday 72°F Patchy Fog then Mostly Sunny 0 to 10 mph SW 2%
Wednesday Night 56°F Mostly Cloudy 5 mph S 14%
Thursday 69°F Light Rain 5 to 10 mph S 76%
Thursday Night 58°F Light Rain Likely 0 to 5 mph SW 63%
Friday 67°F Light Rain Likely 0 to 5 mph NW 63%
Friday Night 49°F Light Rain Likely 0 to 5 mph N 57%
Saturday 63°F Slight Chance Light Rain 5 to 10 mph NW 19%
Saturday Night 39°F Slight Chance Light Rain 5 to 10 mph NW 17%
Sunday 59°F Mostly Sunny 5 to 10 mph W 14%
Sunday Night 37°F Slight Chance Light Rain 5 to 10 mph W 19%
Monday 59°F Chance Light Rain 10 to 15 mph NW 25%
Monday Night 36°F Slight Chance Light Rain 5 to 10 mph W 22%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Chapman, PA

Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
6b

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

Climate data from the nearest NOAA station, Allentown Intl Ap, Pa (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.