Defiance, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Defiance, a community in Bedford County, Pennsylvania.
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. Southeast wind around 5 mph.
7-day forecast for Defiance
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 5 mph SE | 1% |
| Tonight | 49°F | Mostly Clear then Patchy Fog | 3 mph S | 1% |
| Wednesday | 73°F | Patchy Fog then Partly Sunny | 1 to 8 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Rain Showers | 8 mph S | 97% |
| Thursday | 74°F | Rain Showers Likely | 2 to 6 mph SW | 62% |
| Thursday Night | 52°F | Mostly Cloudy then Chance Rain Showers | 2 mph W | 25% |
| Friday | 68°F | Chance Rain Showers | 2 mph NW | 39% |
| Friday Night | 44°F | Chance Rain Showers then Mostly Cloudy | 2 mph NW | 30% |
| Saturday | 59°F | Slight Chance Rain Showers | 2 to 9 mph NW | 17% |
| Saturday Night | 37°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph NW | 16% |
| Sunday | 58°F | Mostly Sunny | 2 to 7 mph W | 8% |
| Sunday Night | 35°F | Partly Cloudy then Slight Chance Rain Showers | 6 mph W | 16% |
| Monday | 57°F | Chance Rain Showers | 6 to 12 mph W | 25% |
| Monday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph W | 22% |
Forecast source: National Weather Service (api.weather.gov) for Defiance (40.160, -78.232). Updated through the day.
Growing snapshot for Defiance
Last spring frost
Apr 23
First fall frost
Oct 21
Growing season
177 days
Hardiness zone
6b
More local growing data for Defiance: nearby ZIP 16633 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Altoona Blair Co Ap, Pa (10.5 mi from Defiance). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.