Chapman, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chapman, a borough in Northampton County, Pennsylvania.
This Afternoon
80°F
Mostly Sunny
Mostly sunny, with a high near 80. North wind around 10 mph.
7-day forecast for Chapman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 53°F | Mostly Clear | 5 to 10 mph N | 0% |
| Saturday | 70°F | Mostly Sunny | 5 to 10 mph E | 1% |
| Saturday Night | 58°F | Rain Showers Likely | 5 mph SE | 61% |
| Sunday | 69°F | Rain Showers | 5 mph SE | 96% |
| Sunday Night | 57°F | Patchy Fog | 5 to 10 mph N | 96% |
| Monday | 66°F | Chance Rain Showers | 10 mph NE | 32% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 15 mph NE | 33% |
| Tuesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Tuesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Wednesday | 60°F | Chance Rain Showers | 15 mph NE | 33% |
| Wednesday Night | 48°F | Chance Showers And Thunderstorms | 15 mph NE | 40% |
| Thursday | 60°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 37% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 32% |
Forecast source: National Weather Service (api.weather.gov) for Chapman (40.760, -75.401). Updated through the day.
Growing snapshot for Chapman
Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
6b
More local growing data for Chapman: nearby ZIP 18014 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Ackermanville
Bangor
Bath
Belfast
Cherryville
Chestnut Hill
East Bangor
Eastlawn Gardens
Easton
Freemansburg
Glendon
Hellertown
Martins Creek
Middletown
Morgan Hill
Mount Bethel
Nazareth
Northampton
Old Orchard
Palmer Heights
Pen Argyl
Portland
Raubsville
Roseto
Stockertown
Tatamy
Walnutport
West Easton
Wilson
Wind Gap
Climate data from the nearest NOAA station, Allentown Intl Ap, Pa (8.3 mi from Chapman). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.