Klahr, PA Weather & Growing Conditions
Today
80°F
Sunny
Sunny, with a high near 80. Southeast wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 2 to 6 mph SE | 0% |
| Tonight | 64°F | Partly Cloudy | 6 mph S | 8% |
| Wednesday | 79°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 6 mph SE | 47% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 6 mph S | 38% |
| Thursday | 82°F | Showers And Thunderstorms | 6 mph SW | 87% |
| Thursday Night | 68°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph SW | 87% |
| Friday | 82°F | Showers And Thunderstorms | 6 mph SW | 77% |
| Friday Night | 66°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 77% |
| Saturday | 81°F | Chance Showers And Thunderstorms | 7 mph W | 42% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 6 mph W | 42% |
| Sunday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 mph W | 17% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph W | 17% |
| Monday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 to 12 mph W | 20% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 9 mph W | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Klahr, PA
Last spring frost
Apr 23
First fall frost
Oct 21
Growing season
177 days
Hardiness zone
6b
Explore more for Klahr, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Altoona Blair Co Ap, Pa (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.