Hartleton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartleton, a borough in Union County, Pennsylvania.
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. Southeast wind around 7 mph.
7-day forecast for Hartleton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 7 mph SE | 1% |
| Tonight | 59°F | Mostly Cloudy then Rain Showers | 5 mph S | 97% |
| Thursday | 73°F | Rain Showers then Partly Sunny | 3 to 7 mph SW | 90% |
| Thursday Night | 50°F | Partly Cloudy | 2 mph W | 2% |
| Friday | 66°F | Partly Sunny | 0 to 3 mph W | 7% |
| Friday Night | 44°F | Mostly Cloudy | 0 to 3 mph W | 12% |
| Saturday | 56°F | Chance Rain Showers | 5 to 10 mph W | 33% |
| Saturday Night | 41°F | Chance Rain Showers | 9 mph NW | 27% |
| Sunday | 58°F | Mostly Sunny | 8 to 12 mph W | 7% |
| Sunday Night | 39°F | Mostly Clear | 8 mph W | 1% |
| Monday | 59°F | Mostly Sunny | 8 to 13 mph W | 3% |
| Monday Night | 38°F | Mostly Clear | 7 mph W | 0% |
| Tuesday | 63°F | Sunny | 6 to 10 mph W | 1% |
| Tuesday Night | 37°F | Mostly Clear | 2 to 6 mph W | 1% |
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 Nov 4, 2026.