Summer temperatures · Pennsylvania
How hot does Harrisburg get in summer?
Harrisburg right now
44°FOvercast skies
- Today46°F / 45°FClouds
- Tomorrow48°F / 40°FClouds
- Monday51°F / 40°FClouds
Oi, clouds. On your way.
Live from OpenWeatherMap. Alerts from the National Weather Service.
In a typical summer, June to August, Harrisburg averages highs around 85°F and lows around 65°F.
About 22 days a year reach 90°F or hotter, and about one reaches 100°F. About 98 days a year get to 80°F or warmer. That makes it the 58th hottest summer of the 129 US cities we track.
Last updated
The hottest high in the forecast for the next 48 hours is about 48°F.
Harrisburg averages about 22 days a year at 90°F or hotter, which is a manageable number until most of them land in the same week.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 85°F |
|---|---|
| Average summer low | 65°F |
| Days a year at 80°F or warmer | 98 |
| Days a year at 90°F or hotter | 22 |
| Days a year at 100°F or hotter | 1 |
| Average winter high, for comparison | 41°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Springfield, Illinois: highs around 85°F, lows around 65°F
- Lexington, Kentucky: highs around 86°F, lows around 65°F
- New York, New York: highs around 83°F, lows around 68°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00014711.