Hartleton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartleton, a borough in Union County, Pennsylvania.
This Afternoon
77°F
Mostly Sunny
Mostly sunny, with a high near 77. North wind around 5 mph.
7-day forecast for Hartleton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Mostly Sunny | 5 mph N | 0% |
| Tonight | 51°F | Partly Cloudy then Patchy Fog | 5 mph N | 0% |
| Saturday | 71°F | Mostly Sunny | 2 mph E | 3% |
| Saturday Night | 60°F | Mostly Cloudy then Rain Showers | 1 to 5 mph SE | 82% |
| Sunday | 71°F | Showers And Thunderstorms | 5 mph S | 99% |
| Sunday Night | 56°F | Showers And Thunderstorms | 6 mph NW | 89% |
| Monday | 66°F | Chance Rain Showers | 6 mph N | 29% |
| Monday Night | 53°F | Rain Showers Likely | 7 mph NE | 56% |
| Tuesday | 60°F | Rain Showers Likely | 7 mph E | 62% |
| Tuesday Night | 49°F | Rain Showers Likely | 7 mph E | 62% |
| Wednesday | 58°F | Chance Rain Showers | 7 mph NE | 50% |
| Wednesday Night | 49°F | Chance Showers And Thunderstorms | 6 mph NE | 48% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 5 mph NE | 44% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 3 mph NE | 38% |
Forecast source: National Weather Service (api.weather.gov) for Hartleton (40.900, -77.156). Updated through the day.
Growing snapshot for Hartleton
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
175 days
Hardiness zone
6b
More local growing data for Hartleton: nearby ZIP 17829 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Laurelton Ctr, Pa (3.1 mi from Hartleton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.