Sinnamahoning, PA Weather & Growing Conditions
This Afternoon
78°F
Sunny
Sunny, with a high near 78. Southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 2 mph SE | 0% |
| Tonight | 59°F | Partly Cloudy | 5 mph SE | 1% |
| Wednesday | 79°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SE | 24% |
| Wednesday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph S | 32% |
| Thursday | 80°F | Showers And Thunderstorms | 5 mph SW | 83% |
| Thursday Night | 67°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph SW | 83% |
| Friday | 79°F | Showers And Thunderstorms | 3 mph SW | 86% |
| Friday Night | 65°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph SW | 86% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 7 mph SW | 56% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely | 7 mph SW | 56% |
| Sunday | 80°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 mph W | 20% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 mph W | 33% |
| Monday | 81°F | Chance Showers And Thunderstorms | 8 mph W | 34% |
| Monday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 to 12 mph SW | 64% |
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 Aug 4, 2026.