Harrisburg, PA Weather & Growing Conditions
This Afternoon
76°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 76. East wind around 3 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Slight Chance Rain Showers | 3 mph E | 15% |
| Tonight | 64°F | Rain Showers Likely | 5 to 10 mph SE | 72% |
| Sunday | 79°F | Rain Showers | 5 to 12 mph S | 89% |
| Sunday Night | 57°F | Showers And Thunderstorms then Mostly Cloudy | 5 to 9 mph W | 89% |
| Monday | 71°F | Partly Sunny then Chance Rain Showers | 8 mph NE | 30% |
| Monday Night | 54°F | Rain Showers Likely | 5 to 8 mph NE | 58% |
| Tuesday | 64°F | Rain Showers Likely | 9 mph NE | 60% |
| Tuesday Night | 52°F | Chance Rain Showers | 10 mph NE | 48% |
| Wednesday | 62°F | Chance Rain Showers | 10 mph NE | 39% |
| Wednesday Night | 51°F | Chance Rain Showers | 10 mph NE | 31% |
| Thursday | 62°F | Slight Chance Rain Showers | 9 mph NE | 21% |
| Thursday Night | 51°F | Slight Chance Rain Showers | 5 to 8 mph N | 21% |
| Friday | 67°F | Chance Rain Showers | 9 mph N | 25% |
| Friday Night | 51°F | Chance Rain Showers | 7 to 10 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrisburg, PA
Last spring frost
Apr 15
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
7a
Explore more for Harrisburg, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Harrisburg 1 Ne, Pa (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.