Colonial Park, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colonial Park, a community in Dauphin County, Pennsylvania.
This Afternoon
81°F
Mostly Sunny
Mostly sunny, with a high near 81. North wind around 9 mph.
7-day forecast for Colonial Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Mostly Sunny | 9 mph N | 0% |
| Tonight | 54°F | Partly Cloudy | 3 to 9 mph N | 0% |
| Saturday | 76°F | Mostly Sunny | 5 mph E | 3% |
| Saturday Night | 63°F | Mostly Cloudy then Chance Rain Showers | 6 to 10 mph SE | 49% |
| Sunday | 76°F | Rain Showers | 7 to 10 mph S | 96% |
| Sunday Night | 60°F | Showers And Thunderstorms | 5 to 9 mph NW | 96% |
| Monday | 71°F | Chance Rain Showers | 9 mph NE | 35% |
| Monday Night | 56°F | Chance Rain Showers | 7 to 12 mph E | 45% |
| Tuesday | 63°F | Rain Showers Likely | 12 mph E | 58% |
| Tuesday Night | 52°F | Rain Showers Likely | 13 mph NE | 58% |
| Wednesday | 61°F | Chance Rain Showers | 12 mph NE | 49% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 12 mph NE | 49% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 12 mph NE | 42% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 38% |
Forecast source: National Weather Service (api.weather.gov) for Colonial Park (40.299, -76.807). Updated through the day.
Growing snapshot for Colonial Park
Last spring frost
Apr 15
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
7a
More local growing data for Colonial Park: nearby ZIP 17109 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Harrisburg 1 Ne, Pa (2.5 mi from Colonial Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.