Klahr, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Klahr, a community in Blair County, Pennsylvania.
Today
77°F
Sunny
Sunny, with a high near 77. East wind 1 to 6 mph.
7-day forecast for Klahr
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 1 to 6 mph E | 0% |
| Tonight | 63°F | Partly Cloudy | 7 mph S | 8% |
| Wednesday | 76°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 mph SE | 47% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 6 mph S | 37% |
| Thursday | 79°F | Showers And Thunderstorms | 6 mph SW | 87% |
| Thursday Night | 67°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 6 mph SW | 87% |
| Friday | 79°F | Showers And Thunderstorms | 6 mph W | 77% |
| Friday Night | 66°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph W | 77% |
| Saturday | 77°F | Chance Showers And Thunderstorms | 7 mph W | 42% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 6 mph W | 42% |
| Sunday | 80°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph W | 17% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 8 mph W | 17% |
| Monday | 80°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 to 12 mph W | 21% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph W | 26% |
Forecast source: National Weather Service (api.weather.gov) for Klahr (40.298, -78.513). Updated through the day.
Growing snapshot for Klahr
Last spring frost
Apr 23
First fall frost
Oct 21
Growing season
177 days
Hardiness zone
6b
More local growing data for Klahr: nearby ZIP 16625 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 Klahr). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.