Grampian, PA Weather & Growing Conditions
This Afternoon
72°F
Mostly Cloudy
Mostly cloudy, with a high near 72. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Cloudy | 6 mph SE | 2% |
| Tonight | 58°F | Rain Showers | 8 mph SE | 79% |
| Sunday | 72°F | Showers And Thunderstorms | 8 mph SW | 94% |
| Sunday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 7 mph N | 35% |
| Monday | 65°F | Mostly Cloudy | 8 mph NE | 10% |
| Monday Night | 44°F | Rain Showers Likely | 9 mph E | 57% |
| Tuesday | 59°F | Rain Showers Likely | 12 mph E | 57% |
| Tuesday Night | 43°F | Chance Rain Showers | 14 mph E | 54% |
| Wednesday | 57°F | Chance Rain Showers | 14 mph E | 54% |
| Wednesday Night | 43°F | Chance Rain Showers | 12 mph E | 49% |
| Thursday | 61°F | Chance Rain Showers | 9 mph E | 49% |
| Thursday Night | 43°F | Chance Showers And Thunderstorms | 3 to 8 mph E | 46% |
| Friday | 66°F | Slight Chance Rain Showers | 5 to 8 mph NE | 21% |
| Friday Night | 43°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 21% |
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 Sep 19, 2026.