Martinsburg Junction, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Martinsburg Junction, a community in Blair County, Pennsylvania.
Today
82°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 82. East wind 0 to 5 mph.
7-day forecast for Martinsburg Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Patchy Fog then Sunny | 0 to 5 mph E | 0% |
| Tonight | 62°F | Partly Cloudy | 0 to 6 mph SE | 8% |
| Wednesday | 81°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 6 mph SE | 49% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 1 to 6 mph S | 38% |
| Thursday | 84°F | Showers And Thunderstorms | 1 to 6 mph SW | 86% |
| Thursday Night | 66°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph SW | 86% |
| Friday | 84°F | Showers And Thunderstorms Likely | 1 to 6 mph SW | 73% |
| Friday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 mph SW | 73% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 1 to 7 mph W | 42% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Mostly Cloudy | 1 to 6 mph W | 42% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph W | 15% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph W | 15% |
| Monday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 12 mph W | 18% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 to 10 mph W | 20% |
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 Aug 4, 2026.