Pen Argyl, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pen Argyl, a borough in Northampton County, Pennsylvania.
Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. Southwest wind 0 to 10 mph.
7-day forecast for Pen Argyl
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 0 to 10 mph SW | 1% |
| Tonight | 56°F | Mostly Cloudy then Patchy Fog | 5 mph S | 12% |
| Thursday | 70°F | Light Rain | 5 to 10 mph S | 81% |
| Thursday Night | 58°F | Light Rain | 0 to 5 mph SW | 79% |
| Friday | 69°F | Chance Light Rain | 0 mph | 53% |
| Friday Night | 49°F | Chance Light Rain | 0 to 5 mph NW | 41% |
| Saturday | 63°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 23% |
| Saturday Night | 43°F | Slight Chance Light Rain | 10 mph W | 23% |
| Sunday | 57°F | Mostly Sunny | 5 to 10 mph NW | 7% |
| Sunday Night | 38°F | Partly Cloudy | 5 to 10 mph W | 4% |
| Monday | 57°F | Sunny | 10 mph W | 6% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph W | 5% |
| Tuesday | 61°F | Sunny | 5 to 10 mph W | 5% |
| Tuesday Night | 38°F | Mostly Clear | 5 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pen Argyl (40.868, -75.254). Updated through the day.
Growing snapshot for Pen Argyl
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
6b
More local growing data for Pen Argyl: nearby ZIP 18072 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Ackermanville
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East Bangor
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Martins Creek
Middletown
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Mount Bethel
Nazareth
Northampton
Old Orchard
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Wind Gap
Climate data from the nearest NOAA station, Belvidere Brg, Nj (9.3 mi from Pen Argyl). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.