Grampian, PA Weather & Growing Conditions
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 47°F | Mostly Clear | 5 mph E | 2% |
| Wednesday | 74°F | Partly Sunny | 3 to 9 mph SE | 3% |
| Wednesday Night | 59°F | Rain Showers | 8 mph SE | 100% |
| Thursday | 71°F | Rain Showers Likely | 6 to 10 mph SW | 69% |
| Thursday Night | 47°F | Partly Cloudy | 1 to 5 mph SW | 14% |
| Friday | 65°F | Slight Chance Rain Showers | 0 to 5 mph W | 19% |
| Friday Night | 42°F | Slight Chance Rain Showers | 5 mph NW | 21% |
| Saturday | 56°F | Chance Rain Showers | 5 to 10 mph W | 33% |
| Saturday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 8 mph W | 33% |
| Sunday | 55°F | Partly Sunny then Slight Chance Rain Showers | 6 to 10 mph W | 15% |
| Sunday Night | 33°F | Slight Chance Rain Showers | 8 to 12 mph W | 23% |
| Monday | 55°F | Chance Rain Showers | 12 to 16 mph W | 30% |
| Monday Night | 33°F | Chance Rain Showers | 8 to 13 mph W | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grampian, PA
Last spring frost
May 4
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
6a
Explore more for Grampian, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Grampian 1E, Pa (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.