Klahr, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Klahr, a community in Blair County, Pennsylvania.
Overnight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. South wind around 6 mph.
7-day forecast for Klahr
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Partly Cloudy | 6 mph S | 0% |
| Wednesday | 71°F | Partly Sunny | 5 to 13 mph S | 1% |
| Wednesday Night | 57°F | Light Rain | 14 to 18 mph S | 94% |
| Thursday | 67°F | Light Rain Likely | 7 to 14 mph SW | 55% |
| Thursday Night | 49°F | Mostly Cloudy | 5 to 8 mph W | 4% |
| Friday | 60°F | Partly Sunny | 5 mph W | 13% |
| Friday Night | 44°F | Partly Cloudy | 5 to 13 mph W | 13% |
| Saturday | 49°F | Chance Light Rain | 14 to 17 mph W | 27% |
| Saturday Night | 38°F | Chance Light Rain | 16 to 20 mph W | 27% |
| Sunday | 49°F | Slight Chance Light Rain then Partly Sunny | 13 to 16 mph W | 15% |
| Sunday Night | 37°F | Partly Cloudy | 14 to 18 mph W | 6% |
| Monday | 49°F | Mostly Sunny | 15 mph W | 12% |
| Monday Night | 37°F | Mostly Clear | 13 mph W | 9% |
| Tuesday | 54°F | Sunny | 15 mph W | 4% |
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 Nov 4, 2026.