New Cumberland, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Cumberland, a borough in Dauphin County, Pennsylvania.
Overnight
55°F
Mostly Cloudy
Mostly cloudy, with a low around 55. North wind around 3 mph.
7-day forecast for New Cumberland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Cloudy | 3 mph N | 0% |
| Saturday | 76°F | Partly Sunny | 5 mph NE | 3% |
| Saturday Night | 63°F | Rain Showers | 5 to 10 mph SE | 78% |
| Sunday | 76°F | Rain Showers | 6 to 12 mph S | 91% |
| Sunday Night | 57°F | Showers And Thunderstorms | 5 to 9 mph NW | 91% |
| Monday | 69°F | Slight Chance Rain Showers | 9 mph N | 19% |
| Monday Night | 52°F | Chance Rain Showers | 6 to 9 mph NE | 46% |
| Tuesday | 61°F | Chance Rain Showers | 10 mph E | 54% |
| Tuesday Night | 50°F | Chance Rain Showers | 9 to 13 mph NE | 47% |
| Wednesday | 61°F | Chance Rain Showers | 13 mph NE | 41% |
| Wednesday Night | 51°F | Chance Rain Showers | 12 mph NE | 36% |
| Thursday | 63°F | Chance Rain Showers | 10 mph NE | 39% |
| Thursday Night | 50°F | Chance Rain Showers | 5 to 9 mph NE | 39% |
| Friday | 67°F | Chance Rain Showers | 9 mph N | 26% |
Forecast source: National Weather Service (api.weather.gov) for New Cumberland (40.229, -76.878). Updated through the day.
Growing snapshot for New Cumberland
Last spring frost
Apr 15
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
7a
More local growing data for New Cumberland: nearby ZIP 17104 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Berrysburg
Bressler
Colonial Park
Elizabethville
Enhaut
Gratz
Harrisburg
Hershey
Highspire
Hummelstown
Lawnton
Lenkerville
Linglestown
Lykens
Middletown
Millersburg
Oberlin
Palmdale
Paxtang
Paxtonia
Penbrook
Pillow
Progress
Royalton
Rutherford
Skyline View
Steelton
Union Deposit
West Fairview
Wiconsico
Climate data from the nearest NOAA station, Harrisburg 1 Ne, Pa (1.9 mi from New Cumberland). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.