Martinsburg Junction, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Martinsburg Junction, a community in Blair County, Pennsylvania.
This Afternoon
77°F
Partly Sunny
Partly sunny, with a high near 77. North wind around 6 mph.
7-day forecast for Martinsburg Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Partly Sunny | 6 mph N | 6% |
| Tonight | 51°F | Partly Cloudy then Patchy Fog | 6 mph N | 3% |
| Saturday | 73°F | Patchy Fog then Partly Sunny | 2 to 6 mph E | 3% |
| Saturday Night | 61°F | Chance Rain Showers | 5 to 9 mph SE | 47% |
| Sunday | 75°F | Rain Showers | 3 to 9 mph SW | 97% |
| Sunday Night | 56°F | Showers And Thunderstorms | 3 to 9 mph NW | 97% |
| Monday | 66°F | Chance Rain Showers | 9 mph NE | 39% |
| Monday Night | 53°F | Rain Showers Likely | 6 to 9 mph E | 70% |
| Tuesday | 59°F | Showers And Thunderstorms Likely | 9 mph E | 73% |
| Tuesday Night | 48°F | Rain Showers Likely | 10 mph E | 70% |
| Wednesday | 57°F | Rain Showers Likely | 9 mph E | 62% |
| Wednesday Night | 48°F | Showers And Thunderstorms Likely | 5 to 8 mph E | 57% |
| Thursday | 60°F | Chance Showers And Thunderstorms | 6 mph E | 53% |
| Thursday Night | 49°F | Chance Rain Showers | 1 to 5 mph NE | 36% |
Forecast source: National Weather Service (api.weather.gov) for Martinsburg Junction (40.310, -78.337). Updated through the day.
Growing snapshot for Martinsburg Junction
Last spring frost
Apr 23
First fall frost
Oct 21
Growing season
177 days
Hardiness zone
6b
More local growing data for Martinsburg Junction: nearby ZIP 16631 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Altoona Blair Co Ap, Pa (2.2 mi from Martinsburg Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.