Hermitage, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hermitage, a city in Mercer County, Pennsylvania.
Tonight
55°F
Mostly Clear
Mostly clear, with a low around 55. Southeast wind 5 to 8 mph.
7-day forecast for Hermitage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Clear | 5 to 8 mph SE | 3% |
| Wednesday | 74°F | Mostly Cloudy then Chance Light Rain | 8 to 13 mph S | 35% |
| Wednesday Night | 57°F | Light Rain | 9 to 14 mph S | 100% |
| Thursday | 67°F | Slight Chance Light Rain then Mostly Sunny | 7 to 14 mph SW | 15% |
| Thursday Night | 45°F | Partly Cloudy | 2 to 6 mph SW | 2% |
| Friday | 62°F | Partly Sunny then Slight Chance Light Rain | 2 to 6 mph W | 19% |
| Friday Night | 42°F | Chance Light Rain | 6 mph NW | 33% |
| Saturday | 53°F | Chance Light Rain | 6 to 10 mph W | 35% |
| Saturday Night | 35°F | Chance Light Rain then Mostly Cloudy | 3 to 7 mph W | 35% |
| Sunday | 54°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph SW | 20% |
| Sunday Night | 34°F | Slight Chance Light Rain | 7 mph W | 21% |
| Monday | 55°F | Chance Light Rain | 7 to 13 mph W | 32% |
| Monday Night | 36°F | Chance Light Rain | 6 to 9 mph SW | 32% |
| Tuesday | 59°F | Mostly Sunny | 9 to 15 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Hermitage (41.230, -80.441). Updated through the day.
Growing snapshot for Hermitage
Last spring frost
May 15
First fall frost
Oct 3
Growing season
140 days
Hardiness zone
6a
More local growing data for Hermitage: nearby ZIP 16148 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Clark
Farrell
Fredonia
Greenville
Grove City
Jackson Center
Lake Latonka
Mercer
New Lebanon
Reynolds Heights
Sandy Lake
Sharon
Sharpsville
Sheakleyville
Stoneboro
West Middlesex
Wheatland
Climate data from the nearest NOAA station, Mercer, Pa (9.5 mi from Hermitage). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.