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
71°F
Partly Sunny
Partly sunny, with a high near 71. South wind around 5 mph.
7-day forecast for Colonial Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Partly Sunny | 5 mph S | 2% |
| Tonight | 51°F | Partly Cloudy | 3 mph SE | 1% |
| Wednesday | 75°F | Mostly Sunny | 2 to 10 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Rain Showers Likely | 6 to 9 mph S | 71% |
| Thursday | 74°F | Rain Showers | 6 to 9 mph S | 83% |
| Thursday Night | 58°F | Chance Rain Showers | 1 to 5 mph W | 54% |
| Friday | 70°F | Chance Rain Showers | 3 mph NW | 54% |
| Friday Night | 49°F | Chance Rain Showers | 5 mph NW | 49% |
| Saturday | 64°F | Slight Chance Rain Showers | 6 to 10 mph NW | 15% |
| Saturday Night | 41°F | Partly Cloudy | 6 to 10 mph NW | 14% |
| Sunday | 60°F | Mostly Sunny | 5 to 9 mph W | 8% |
| Sunday Night | 39°F | Slight Chance Rain Showers | 7 mph W | 20% |
| Monday | 60°F | Slight Chance Rain Showers | 7 to 15 mph NW | 23% |
| Monday Night | 38°F | Slight Chance Rain Showers | 5 to 10 mph W | 21% |
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 Nov 3, 2026.