Harrisburg, PA Weather & Growing Conditions
Today
76°F
Partly Sunny
Partly sunny, with a high near 76. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Partly Sunny | 5 mph E | 3% |
| Tonight | 62°F | Rain Showers | 5 to 10 mph SE | 79% |
| Sunday | 75°F | Rain Showers | 5 to 12 mph S | 91% |
| Sunday Night | 57°F | Showers And Thunderstorms | 5 to 9 mph NW | 91% |
| Monday | 70°F | Slight Chance Rain Showers | 6 to 9 mph N | 18% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 9 mph NE | 46% |
| Tuesday | 61°F | Chance Rain Showers | 9 mph E | 54% |
| Tuesday Night | 50°F | Chance Rain Showers | 12 mph NE | 48% |
| Wednesday | 61°F | Chance Rain Showers | 12 mph NE | 41% |
| Wednesday Night | 51°F | Chance Rain Showers | 12 mph NE | 36% |
| Thursday | 63°F | Chance Rain Showers | 12 mph NE | 39% |
| Thursday Night | 50°F | Chance Rain Showers | 5 to 9 mph NE | 39% |
| Friday | 68°F | Chance Rain Showers | 9 mph N | 26% |
| Friday Night | 50°F | Slight Chance Rain Showers | 6 to 9 mph N | 19% |
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 (1.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.