Locust Gap, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Locust Gap, a community in Northumberland County, Pennsylvania.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. North wind around 5 mph.
7-day forecast for Locust Gap
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 5 mph N | 0% |
| Tonight | 49°F | Mostly Clear | 6 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 3 mph E | 2% |
| Saturday Night | 57°F | Mostly Cloudy then Rain Showers Likely | 2 to 8 mph SE | 70% |
| Sunday | 67°F | Rain Showers | 3 to 8 mph S | 98% |
| Sunday Night | 56°F | Showers And Thunderstorms | 3 to 7 mph NW | 98% |
| Monday | 64°F | Chance Rain Showers | 3 to 7 mph NE | 31% |
| Monday Night | 52°F | Chance Rain Showers | 3 to 7 mph NE | 45% |
| Tuesday | 57°F | Chance Rain Showers | 7 mph E | 50% |
| Tuesday Night | 48°F | Chance Rain Showers | 5 to 8 mph E | 50% |
| Wednesday | 56°F | Chance Rain Showers | 5 to 8 mph E | 45% |
| Wednesday Night | 47°F | Chance Showers And Thunderstorms | 6 mph E | 42% |
| Thursday | 59°F | Chance Showers And Thunderstorms | 6 mph NE | 38% |
| Thursday Night | 49°F | Chance Showers And Thunderstorms | 3 mph NE | 36% |
Forecast source: National Weather Service (api.weather.gov) for Locust Gap (40.770, -76.441). Updated through the day.
Growing snapshot for Locust Gap
Last spring frost
Apr 27
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
6b
More local growing data for Locust Gap: nearby ZIP 17840 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Bear Gap, Pa (4.9 mi from Locust Gap). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.