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Marienville, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Marienville, a community in Forest County, Pennsylvania.

Tonight
60°F
Showers And Thunderstorms
Rain showers likely before 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Marienville

WhenTempForecastWindPrecip
Tonight 60°F Showers And Thunderstorms 5 mph SE 91%
Sunday 71°F Showers And Thunderstorms 6 mph SW 95%
Sunday Night 47°F Slight Chance Rain Showers then Mostly Cloudy 6 mph NE 18%
Monday 67°F Partly Sunny then Slight Chance Rain Showers 7 mph NE 18%
Monday Night 46°F Chance Rain Showers 7 mph E 42%
Tuesday 62°F Chance Rain Showers 8 mph E 49%
Tuesday Night 46°F Chance Rain Showers 10 mph E 52%
Wednesday 59°F Chance Rain Showers 7 to 10 mph E 49%
Wednesday Night 45°F Chance Rain Showers 9 mph E 32%
Thursday 61°F Chance Rain Showers 7 mph E 32%
Thursday Night 44°F Slight Chance Rain Showers 5 mph E 17%
Friday 67°F Slight Chance Rain Showers then Partly Sunny 5 mph NE 15%
Friday Night 44°F Partly Cloudy 5 mph N 12%
Saturday 68°F Mostly Sunny 6 mph N 10%

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

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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 20, 2026.