Seward, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seward, a borough in Indiana County, Pennsylvania.
Tonight
64°F
Showers And Thunderstorms Likely
A chance of rain showers between 10pm and 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. Southeast wind 3 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Seward
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Showers And Thunderstorms Likely | 3 to 8 mph SE | 73% |
| Sunday | 77°F | Showers And Thunderstorms | 3 to 8 mph SW | 97% |
| Sunday Night | 54°F | Showers And Thunderstorms Likely | 6 mph N | 63% |
| Monday | 70°F | Mostly Cloudy then Chance Rain Showers | 7 mph E | 39% |
| Monday Night | 52°F | Showers And Thunderstorms Likely | 7 to 10 mph E | 68% |
| Tuesday | 65°F | Rain Showers Likely | 10 to 14 mph E | 69% |
| Tuesday Night | 50°F | Rain Showers Likely | 15 mph E | 66% |
| Wednesday | 59°F | Rain Showers Likely | 15 mph E | 66% |
| Wednesday Night | 49°F | Chance Rain Showers | 10 to 14 mph E | 34% |
| Thursday | 63°F | Chance Rain Showers | 8 to 12 mph E | 34% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 2 to 7 mph E | 21% |
| Friday | 69°F | Slight Chance Rain Showers | 2 to 7 mph NE | 20% |
| Friday Night | 47°F | Slight Chance Rain Showers then Partly Cloudy | 1 to 6 mph N | 15% |
| Saturday | 71°F | Mostly Sunny | 2 to 7 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for Seward (40.413, -79.022). Updated through the day.
Growing snapshot for Seward
Last spring frost
Apr 29
First fall frost
Oct 21
Growing season
176 days
Hardiness zone
6b
More local growing data for Seward: nearby ZIP 15954 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Alverda
Armagh
Black Lick
Blairsville
Bolivar
Cherry Tree
Chevy Chase Heights
Clymer
Commodore
Coral
Creekside
Dixonville
Ernest
Glen Campbell
Graceton
Heilwood
Homer City
Indiana
Jacksonville
Lucerne Mines
Marion Center
Plumville
Robinson
Rossiter
Saltsburg
Smicksburg
Vintondale
Climate data from the nearest NOAA station, Johnstown Cambria Co Ap, Pa (11.2 mi from Seward). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.