Marienville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marienville, a community in Forest County, Pennsylvania.
This Afternoon
71°F
Slight Chance Rain Showers
A slight chance of rain showers before 3pm. Mostly cloudy, with a high near 71. Southeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Marienville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Slight Chance Rain Showers | 5 mph SE | 15% |
| Tonight | 58°F | Showers And Thunderstorms | 5 mph SE | 91% |
| Sunday | 71°F | Showers And Thunderstorms | 6 mph SW | 95% |
| Sunday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph NE | 18% |
| Monday | 65°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph NE | 18% |
| Monday Night | 45°F | Chance Rain Showers | 7 mph E | 42% |
| Tuesday | 59°F | Chance Rain Showers | 8 mph E | 49% |
| Tuesday Night | 44°F | Chance Rain Showers | 10 mph E | 51% |
| Wednesday | 57°F | Chance Rain Showers | 7 to 10 mph E | 48% |
| Wednesday Night | 44°F | Chance Rain Showers | 9 mph E | 32% |
| Thursday | 62°F | Chance Rain Showers | 7 mph E | 32% |
| Thursday Night | 44°F | Slight Chance Rain Showers | 5 mph E | 18% |
| Friday | 66°F | Slight Chance Rain Showers then Partly Sunny | 5 mph NE | 15% |
| Friday Night | 44°F | Partly Cloudy | 5 mph N | 12% |
Forecast source: National Weather Service (api.weather.gov) for Marienville (41.469, -79.118). Updated through the day.
Growing snapshot for Marienville
Last spring frost
May 13
First fall frost
Oct 7
Growing season
143 days
Hardiness zone
6a
More local growing data for Marienville: nearby ZIP 16239 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cooksburg 2 Nw, Pa (10.6 mi from Marienville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.