Hartleton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartleton, a borough in Union County, Pennsylvania.
Overnight
57°F
Mostly Clear
Mostly clear, with a low around 57. Wind around 0 mph.
7-day forecast for Hartleton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 82°F | Sunny | 2 mph E | 0% |
| Tuesday Night | 64°F | Mostly Cloudy | 2 mph E | 3% |
| Wednesday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 3 mph E | 20% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph E | 46% |
| Thursday | 86°F | Showers And Thunderstorms | 0 to 5 mph S | 82% |
| Thursday Night | 69°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 82% |
| Friday | 85°F | Showers And Thunderstorms | 0 to 3 mph W | 75% |
| Friday Night | 68°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph W | 75% |
| Saturday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 45% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph W | 45% |
| Sunday | 86°F | Mostly Sunny | 1 to 5 mph W | 11% |
| Sunday Night | 69°F | Partly Cloudy | 3 mph W | 11% |
| Monday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 23% |
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 Aug 4, 2026.