East Marianna, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for East Marianna, a community in Washington County, Pennsylvania.
This Afternoon
76°F
Partly Sunny
Partly sunny, with a high near 76. North wind around 7 mph.
7-day forecast for East Marianna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Partly Sunny | 7 mph N | 13% |
| Tonight | 58°F | Partly Cloudy | 2 to 6 mph NE | 12% |
| Saturday | 80°F | Mostly Sunny | 3 mph E | 5% |
| Saturday Night | 65°F | Partly Cloudy then Showers And Thunderstorms Likely | 2 to 6 mph SE | 56% |
| Sunday | 79°F | Showers And Thunderstorms | 6 to 9 mph SW | 93% |
| Sunday Night | 60°F | Showers And Thunderstorms | 5 to 8 mph N | 93% |
| Monday | 71°F | Chance Rain Showers | 9 mph NE | 46% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 9 mph NE | 68% |
| Tuesday | 67°F | Showers And Thunderstorms | 12 mph E | 75% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 9 to 13 mph E | 70% |
| Wednesday | 65°F | Showers And Thunderstorms Likely | 12 mph E | 66% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 5 to 12 mph E | 54% |
| Thursday | 66°F | Chance Rain Showers | 8 mph E | 41% |
| Thursday Night | 52°F | Chance Rain Showers | 2 to 8 mph NE | 30% |
Forecast source: National Weather Service (api.weather.gov) for East Marianna (40.022, -80.088). Updated through the day.
Growing snapshot for East Marianna
Last spring frost
May 3
First fall frost
Oct 15
Growing season
164 days
Hardiness zone
6b
More local growing data for East Marianna: nearby ZIP 15345 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Waynesburg 1 E, Pa (9 mi from East Marianna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.