Glendon, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glendon, a borough in Northampton County, Pennsylvania.
Overnight
53°F
Mostly Clear
Mostly clear, with a low around 53. Northeast wind around 5 mph.
7-day forecast for Glendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Clear | 5 mph NE | 0% |
| Saturday | 72°F | Mostly Sunny | 5 mph E | 1% |
| Saturday Night | 58°F | Patchy Fog | 5 mph SE | 50% |
| Sunday | 71°F | Rain Showers | 5 mph S | 92% |
| Sunday Night | 58°F | Patchy Fog | 0 to 5 mph NW | 92% |
| Monday | 67°F | Chance Rain Showers | 5 to 10 mph NE | 34% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph NE | 36% |
| Tuesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Wednesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Wednesday Night | 49°F | Chance Rain Showers | 10 mph NE | 39% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 mph NE | 35% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 31% |
| Friday | 70°F | Slight Chance Rain Showers | 5 to 10 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Glendon (40.658, -75.240). Updated through the day.
Growing snapshot for Glendon
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a
More local growing data for Glendon: nearby ZIP 18042 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Bath
Belfast
Chapman
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Chestnut Hill
East Bangor
Eastlawn Gardens
Easton
Freemansburg
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, Phillipsburg-Easton Brg, Nj (3.9 mi from Glendon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.