Sinnamahoning, PA Weather & Growing Conditions
Overnight
50°F
Partly Cloudy
Partly cloudy, with a low around 50. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Partly Cloudy | 5 mph S | 0% |
| Wednesday | 70°F | Partly Sunny | 3 to 9 mph S | 2% |
| Wednesday Night | 58°F | Light Rain | 10 to 14 mph S | 98% |
| Thursday | 68°F | Light Rain | 6 to 10 mph SW | 79% |
| Thursday Night | 47°F | Mostly Cloudy | 6 mph SW | 5% |
| Friday | 62°F | Partly Sunny then Slight Chance Light Rain | 5 mph SW | 15% |
| Friday Night | 44°F | Chance Light Rain | 3 to 7 mph W | 25% |
| Saturday | 52°F | Chance Light Rain | 9 mph W | 46% |
| Saturday Night | 38°F | Chance Light Rain | 10 mph W | 42% |
| Sunday | 52°F | Slight Chance Light Rain then Partly Sunny | 8 mph W | 15% |
| Sunday Night | 36°F | Partly Cloudy then Slight Chance Light Rain | 9 mph W | 15% |
| Monday | 53°F | Slight Chance Light Rain | 9 mph W | 23% |
| Monday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 7 mph W | 15% |
| Tuesday | 56°F | Mostly Sunny | 9 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sinnamahoning, PA
Last spring frost
May 10
First fall frost
Oct 16
Growing season
157 days
Hardiness zone
6a
Explore more for Sinnamahoning, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Stevenson Dam, Pa (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.