Northampton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northampton, a borough in Northampton County, Pennsylvania.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Northeast wind around 0 mph.
7-day forecast for Northampton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 63°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 83°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph E | 57% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely | 0 mph | 61% |
| Thursday | 88°F | Showers And Thunderstorms | 0 to 5 mph SW | 76% |
| Thursday Night | 70°F | Showers And Thunderstorms | 0 to 5 mph W | 76% |
| Friday | 88°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph W | 62% |
| Friday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph W | 62% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 69°F | Mostly Clear | 0 to 5 mph SW | 12% |
| Monday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 17% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov) for Northampton (40.688, -75.487). Updated through the day.
Growing snapshot for Northampton
Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
7a
More local growing data for Northampton: nearby ZIP 18067 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Ackermanville
Bangor
Bath
Belfast
Chapman
Cherryville
Chestnut Hill
East Bangor
Eastlawn Gardens
Easton
Freemansburg
Glendon
Hellertown
Martins Creek
Middletown
Morgan Hill
Mount Bethel
Nazareth
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 (4.9 mi from Northampton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.