Marshallton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marshallton, a community in Northumberland County, Pennsylvania.
Overnight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. Northeast wind around 2 mph.
7-day forecast for Marshallton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Cloudy | 2 mph NE | 0% |
| Saturday | 71°F | Partly Sunny | 2 mph E | 2% |
| Saturday Night | 56°F | Rain Showers | 2 to 8 mph SE | 81% |
| Sunday | 69°F | Rain Showers | 3 to 8 mph S | 93% |
| Sunday Night | 51°F | Showers And Thunderstorms | 6 mph NW | 93% |
| Monday | 66°F | Mostly Cloudy | 6 mph N | 9% |
| Monday Night | 47°F | Chance Rain Showers | 5 mph NE | 41% |
| Tuesday | 59°F | Chance Rain Showers | 5 mph E | 43% |
| Tuesday Night | 45°F | Chance Rain Showers | 3 to 7 mph E | 37% |
| Wednesday | 60°F | Chance Rain Showers | 7 mph E | 37% |
| Wednesday Night | 46°F | Chance Rain Showers | 7 mph E | 36% |
| Thursday | 60°F | Chance Rain Showers | 7 mph NE | 36% |
| Thursday Night | 45°F | Chance Rain Showers | 5 mph NE | 33% |
| Friday | 64°F | Chance Rain Showers | 6 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for Marshallton (40.785, -76.536). Updated through the day.
Growing snapshot for Marshallton
Last spring frost
Apr 27
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
6b
More local growing data for Marshallton: nearby ZIP 17866 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Bear Gap, Pa (6.2 mi from Marshallton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.