Armagh, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Armagh, a borough in Indiana County, Pennsylvania.
Today
82°F
Sunny
Sunny, with a high near 82. Southeast wind 1 to 5 mph.
7-day forecast for Armagh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 1 to 5 mph SE | 0% |
| Tonight | 64°F | Partly Cloudy | 5 mph SE | 1% |
| Wednesday | 82°F | Partly Sunny then Scattered Showers And Thunderstorms | 5 mph SE | 34% |
| Wednesday Night | 66°F | Scattered Showers And Thunderstorms | 1 to 5 mph SE | 46% |
| Thursday | 83°F | Showers And Thunderstorms | 1 to 6 mph SW | 82% |
| Thursday Night | 66°F | Showers And Thunderstorms | 1 to 5 mph SW | 82% |
| Friday | 82°F | Showers And Thunderstorms | 2 to 6 mph SW | 81% |
| Friday Night | 65°F | Showers And Thunderstorms | 1 to 5 mph SW | 81% |
| Saturday | 81°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 51% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 51% |
| Sunday | 83°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 24% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 6 mph SW | 24% |
| Monday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 7 to 12 mph W | 38% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 49% |
Forecast source: National Weather Service (api.weather.gov) for Armagh (40.454, -79.032). Updated through the day.
Growing snapshot for Armagh
Last spring frost
May 8
First fall frost
Oct 13
Growing season
157 days
Hardiness zone
6b
More local growing data for Armagh: nearby ZIP 15920 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Glen Campbell
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Indiana
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Saltsburg
Seward
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Vintondale
Climate data from the nearest NOAA station, Indiana 3 Se, Pa (9.7 mi from Armagh). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.