Hermitage, PA Weather & Growing Conditions
Today
75°F
Slight Chance Rain Showers then Mostly Cloudy
A slight chance of rain showers before 11am. Mostly cloudy, with a high near 75. Southeast wind around 6 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph SE | 17% |
| Tonight | 62°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph SE | 69% |
| Sunday | 73°F | Showers And Thunderstorms | 7 to 10 mph SW | 90% |
| Sunday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph N | 54% |
| Monday | 66°F | Mostly Cloudy | 12 mph NE | 13% |
| Monday Night | 50°F | Chance Rain Showers | 9 to 13 mph NE | 47% |
| Tuesday | 62°F | Chance Rain Showers | 13 to 16 mph E | 47% |
| Tuesday Night | 50°F | Rain Showers Likely | 17 mph E | 57% |
| Wednesday | 62°F | Rain Showers Likely | 14 to 18 mph E | 57% |
| Wednesday Night | 50°F | Showers And Thunderstorms Likely | 13 to 16 mph E | 62% |
| Thursday | 65°F | Showers And Thunderstorms Likely | 9 to 13 mph E | 60% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 6 to 9 mph E | 19% |
| Friday | 68°F | Slight Chance Rain Showers | 9 mph NE | 18% |
| Friday Night | 49°F | Partly Cloudy | 8 mph NE | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hermitage, PA
Last spring frost
May 15
First fall frost
Oct 3
Growing season
140 days
Hardiness zone
6a
Explore more for Hermitage, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Mercer, Pa (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.