Royalton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Royalton, a borough in Dauphin County, Pennsylvania.
This Afternoon
82°F
Mostly Sunny
Mostly sunny, with a high near 82. North wind around 9 mph.
7-day forecast for Royalton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Mostly Sunny | 9 mph N | 0% |
| Tonight | 54°F | Partly Cloudy | 3 to 9 mph N | 0% |
| Saturday | 77°F | Mostly Sunny | 6 mph E | 3% |
| Saturday Night | 63°F | Mostly Cloudy then Chance Rain Showers | 6 to 12 mph SE | 40% |
| Sunday | 78°F | Showers And Thunderstorms | 7 to 13 mph S | 94% |
| Sunday Night | 61°F | Showers And Thunderstorms | 6 to 9 mph NW | 94% |
| Monday | 71°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday Night | 56°F | Chance Rain Showers | 7 to 12 mph NE | 43% |
| Tuesday | 64°F | Rain Showers Likely | 13 mph NE | 56% |
| Tuesday Night | 52°F | Rain Showers Likely | 14 mph NE | 56% |
| Wednesday | 62°F | Chance Rain Showers | 14 mph NE | 47% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 48% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 13 mph NE | 44% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 5 to 9 mph N | 38% |
Forecast source: National Weather Service (api.weather.gov) for Royalton (40.186, -76.724). Updated through the day.
Growing snapshot for Royalton
Last spring frost
Apr 9
First fall frost
Nov 2
Growing season
206 days
Hardiness zone
7a
More local growing data for Royalton: nearby ZIP 17057 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
New Cumberland
Oberlin
Palmdale
Paxtang
Paxtonia
Penbrook
Pillow
Progress
Rutherford
Skyline View
Steelton
Union Deposit
West Fairview
Wiconsico
Climate data from the nearest NOAA station, Middletown Harrisburg Intl Ap, Pa (2 mi from Royalton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.