Hermitage, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hermitage, a city in Mercer County, Pennsylvania.
Tonight
64°F
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 11pm, then showers and thunderstorms likely. Cloudy, with a low around 64. Southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Hermitage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph SE | 57% |
| Sunday | 73°F | Showers And Thunderstorms | 6 to 9 mph W | 93% |
| Sunday Night | 52°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph NE | 21% |
| Monday | 68°F | Mostly Cloudy | 10 mph NE | 9% |
| Monday Night | 52°F | Chance Rain Showers | 12 mph NE | 25% |
| Tuesday | 64°F | Chance Rain Showers | 14 mph E | 40% |
| Tuesday Night | 51°F | Showers And Thunderstorms Likely | 16 mph E | 68% |
| Wednesday | 63°F | Showers And Thunderstorms Likely | 16 mph E | 68% |
| Wednesday Night | 50°F | Chance Rain Showers | 12 to 15 mph E | 50% |
| Thursday | 65°F | Chance Rain Showers | 8 to 13 mph E | 50% |
| Thursday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph E | 15% |
| Friday | 69°F | Partly Sunny | 8 mph NE | 12% |
| Friday Night | 49°F | Partly Cloudy | 3 to 8 mph N | 10% |
| Saturday | 70°F | Mostly Sunny | 5 to 9 mph N | 6% |
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 Sep 20, 2026.