New Cumberland, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Cumberland, a borough in Dauphin County, Pennsylvania.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind around 3 mph.
7-day forecast for New Cumberland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 3 mph E | 0% |
| Tonight | 68°F | Mostly Cloudy | 0 to 3 mph E | 5% |
| Wednesday | 84°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 5 mph E | 46% |
| Wednesday Night | 72°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 5 mph SE | 70% |
| Thursday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 2 to 7 mph S | 67% |
| Thursday Night | 72°F | Showers And Thunderstorms Likely | 0 to 6 mph SW | 67% |
| Friday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 64% |
| Friday Night | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 3 mph SW | 64% |
| Saturday | 87°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 51% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 to 3 mph W | 51% |
| Sunday | 89°F | Mostly Sunny | 1 to 5 mph W | 12% |
| Sunday Night | 72°F | Partly Cloudy | 1 to 5 mph SW | 12% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 8 mph W | 20% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 20% |
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 Aug 4, 2026.