Harrisburg, PA Weather & Growing Conditions
This Afternoon
81°F
Mostly Sunny
Mostly sunny, with a high near 81. North wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Mostly Sunny | 8 mph N | 0% |
| Tonight | 54°F | Mostly Clear | 3 to 8 mph N | 0% |
| Saturday | 76°F | Patchy Fog then Mostly Sunny | 5 mph E | 3% |
| Saturday Night | 63°F | Mostly Cloudy then Chance Rain Showers | 5 to 9 mph SE | 51% |
| Sunday | 77°F | Rain Showers | 6 to 10 mph S | 96% |
| Sunday Night | 61°F | Showers And Thunderstorms | 5 to 8 mph NW | 96% |
| Monday | 70°F | Chance Rain Showers | 8 mph NE | 35% |
| Monday Night | 56°F | Chance Rain Showers | 6 to 10 mph NE | 47% |
| Tuesday | 63°F | Rain Showers Likely | 10 mph E | 59% |
| Tuesday Night | 52°F | Rain Showers Likely | 12 mph NE | 59% |
| Wednesday | 61°F | Chance Rain Showers | 10 mph NE | 50% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 50% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 mph NE | 43% |
| Thursday Night | 53°F | Chance Showers And Thunderstorms | 3 to 7 mph N | 39% |
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 (0.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.