Harmony, PA Weather & Growing Conditions
Tonight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. Northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Partly Cloudy | 6 mph NE | 5% |
| Saturday | 77°F | Partly Sunny | 6 mph E | 10% |
| Saturday Night | 63°F | Mostly Cloudy then Showers And Thunderstorms Likely | 5 mph SE | 72% |
| Sunday | 76°F | Showers And Thunderstorms | 7 mph SW | 95% |
| Sunday Night | 56°F | Showers And Thunderstorms | 8 mph N | 89% |
| Monday | 69°F | Chance Rain Showers | 9 mph NE | 26% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 12 mph E | 54% |
| Tuesday | 65°F | Showers And Thunderstorms Likely | 13 mph E | 62% |
| Tuesday Night | 53°F | Showers And Thunderstorms Likely | 15 mph E | 63% |
| Wednesday | 63°F | Showers And Thunderstorms Likely | 13 mph E | 63% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 9 to 14 mph E | 52% |
| Thursday | 65°F | Chance Rain Showers | 7 to 10 mph E | 42% |
| Thursday Night | 51°F | Slight Chance Rain Showers | 3 to 7 mph NE | 18% |
| Friday | 69°F | Slight Chance Rain Showers | 7 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harmony, PA
Last spring frost
Apr 27
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
6b
Explore more for Harmony, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Beaver Falls 1 Ne, Pa (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.