Hermitage, PA Weather & Growing Conditions
Overnight
55°F
Mostly Clear
Mostly clear, with a low around 55. Southeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Clear | 9 mph SE | 1% |
| Wednesday | 74°F | Mostly Cloudy then Light Rain Likely | 9 to 13 mph S | 56% |
| Wednesday Night | 57°F | Light Rain | 10 to 15 mph S | 97% |
| Thursday | 66°F | Mostly Sunny | 8 to 14 mph SW | 5% |
| Thursday Night | 45°F | Partly Cloudy | 7 mph SW | 1% |
| Friday | 60°F | Chance Light Rain | 3 to 8 mph SW | 42% |
| Friday Night | 40°F | Chance Light Rain | 5 to 9 mph W | 53% |
| Saturday | 53°F | Chance Light Rain | 7 to 10 mph W | 53% |
| Saturday Night | 36°F | Chance Light Rain then Mostly Cloudy | 7 mph W | 35% |
| Sunday | 54°F | Partly Sunny then Slight Chance Light Rain | 5 to 9 mph SW | 20% |
| Sunday Night | 34°F | Slight Chance Light Rain | 8 mph W | 21% |
| Monday | 55°F | Chance Light Rain | 8 to 13 mph W | 32% |
| Monday Night | 36°F | Chance Light Rain | 7 to 10 mph SW | 32% |
| Tuesday | 59°F | Mostly Sunny | 10 to 15 mph W | 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 Nov 4, 2026.