Sinnamahoning, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sinnamahoning, a community in Cameron County, Pennsylvania.
This Afternoon
80°F
Mostly Sunny
Mostly sunny, with a high near 80. North wind around 5 mph.
7-day forecast for Sinnamahoning
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Mostly Sunny | 5 mph N | 0% |
| Tonight | 52°F | Partly Cloudy then Patchy Fog | 3 mph NE | 0% |
| Saturday | 74°F | Patchy Fog then Partly Sunny | 3 mph E | 4% |
| Saturday Night | 60°F | Mostly Cloudy then Rain Showers | 5 mph SE | 78% |
| Sunday | 74°F | Showers And Thunderstorms | 5 mph SW | 97% |
| Sunday Night | 53°F | Rain Showers Likely | 5 mph N | 70% |
| Monday | 69°F | Chance Rain Showers | 6 mph NE | 27% |
| Monday Night | 52°F | Chance Rain Showers | 7 mph E | 54% |
| Tuesday | 64°F | Rain Showers Likely | 7 mph E | 61% |
| Tuesday Night | 48°F | Rain Showers Likely | 9 mph E | 61% |
| Wednesday | 61°F | Chance Rain Showers | 8 mph E | 54% |
| Wednesday Night | 48°F | Chance Showers And Thunderstorms | 7 mph E | 48% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 6 mph E | 46% |
| Thursday Night | 49°F | Chance Rain Showers | 5 mph NE | 38% |
Forecast source: National Weather Service (api.weather.gov) for Sinnamahoning (41.322, -78.096). Updated through the day.
Growing snapshot for Sinnamahoning
Last spring frost
May 10
First fall frost
Oct 16
Growing season
157 days
Hardiness zone
6a
More local growing data for Sinnamahoning: nearby ZIP 15861 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Stevenson Dam, Pa (3.7 mi from Sinnamahoning). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.