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Defiance, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Defiance, a community in Bedford County, Pennsylvania.

Today
74°F
Mostly Cloudy
Mostly cloudy, with a high near 74. East wind around 3 mph.

7-day forecast for Defiance

WhenTempForecastWindPrecip
Today 74°F Mostly Cloudy 3 mph E 5%
Tonight 61°F Rain Showers Likely 2 to 8 mph SE 55%
Sunday 75°F Showers And Thunderstorms 3 to 8 mph SW 79%
Sunday Night 54°F Showers And Thunderstorms 2 to 8 mph NW 79%
Monday 65°F Chance Rain Showers 5 to 8 mph NE 29%
Monday Night 51°F Rain Showers Likely 6 mph NE 67%
Tuesday 58°F Rain Showers Likely 6 mph E 69%
Tuesday Night 48°F Rain Showers Likely 8 mph E 59%
Wednesday 56°F Rain Showers Likely 8 mph E 58%
Wednesday Night 48°F Chance Rain Showers 7 mph E 50%
Thursday 59°F Chance Rain Showers 5 mph NE 50%
Thursday Night 48°F Chance Showers And Thunderstorms 5 mph NE 39%
Friday 65°F Slight Chance Rain Showers 5 mph N 21%
Friday Night 48°F Slight Chance Rain Showers 5 mph N 21%

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

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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 Sep 19, 2026.