Castanea, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castanea, a community in Clinton County, Pennsylvania.
Overnight
55°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 55. Wind around 0 mph.
7-day forecast for Castanea
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Patchy Fog | 0 mph | 0% |
| Tuesday | 82°F | Patchy Fog then Sunny | 2 mph E | 0% |
| Tuesday Night | 62°F | Partly Cloudy | 0 to 3 mph SE | 1% |
| Wednesday | 81°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 1 to 5 mph E | 47% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 3 mph SE | 37% |
| Thursday | 84°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph S | 84% |
| Thursday Night | 67°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SW | 84% |
| Friday | 84°F | Showers And Thunderstorms | 1 to 5 mph SW | 78% |
| Friday Night | 66°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 3 mph SW | 78% |
| Saturday | 82°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 6 mph SW | 44% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph SW | 44% |
| Sunday | 85°F | Mostly Sunny | 1 to 6 mph SW | 12% |
| Sunday Night | 68°F | Partly Cloudy | 1 to 5 mph SW | 12% |
| Monday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 9 mph W | 28% |
Forecast source: National Weather Service (api.weather.gov) for Castanea (41.117, -77.427). Updated through the day.
Growing snapshot for Castanea
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
173 days
Hardiness zone
6b
More local growing data for Castanea: nearby ZIP 17750 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Lock Haven Sewage Plt, Pa (5.7 mi from Castanea). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.