Grampian, PA Weather & Growing Conditions
Today
81°F
Patchy Fog then Sunny
Patchy fog before 10am. Sunny, with a high near 81. Southeast wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Patchy Fog then Sunny | 1 to 5 mph SE | 0% |
| Tonight | 61°F | Partly Cloudy then Patchy Fog | 1 to 5 mph E | 1% |
| Wednesday | 81°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 6 mph SE | 44% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 1 to 5 mph SE | 46% |
| Thursday | 82°F | Showers And Thunderstorms | 1 to 6 mph S | 85% |
| Thursday Night | 66°F | Showers And Thunderstorms | 3 mph SW | 85% |
| Friday | 81°F | Showers And Thunderstorms | 1 to 6 mph SW | 80% |
| Friday Night | 64°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SW | 80% |
| Saturday | 80°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 7 mph W | 47% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 2 to 6 mph W | 47% |
| Sunday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 20% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 20% |
| Monday | 83°F | Chance Showers And Thunderstorms | 10 mph W | 36% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph W | 42% |
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 Aug 4, 2026.