No
you don't need a jacket based on the weather in Horsham, PA, USA 1 second ago
77°F25°C & Mostly Clear
Wind is 8 mph13 km/h from the Southwest, gusting to 17 mph28 km/h
| September 6 | ||||
| 10am | 79°F26°C | 9 mph15 km/h Southwest | Mostly Clear | |
| 11am | 82°F28°C | 9 mph15 km/h Southwest | Partly Cloudy | |
| 12pm | 84°F29°C | 10 mph16 km/h Southwest | Partly Cloudy | |
| 1pm | 85°F30°C | 11 mph17 km/h Southwest | Partly Cloudy | |
| 2pm | 85°F30°C | 11 mph17 km/h Southwest | Cloudy | |
| 3pm | 84°F29°C | 9 mph15 km/h Southwest | Cloudy | |
| 4pm | 82°F28°C | 8 mph13 km/h West | Cloudy | |
| 5pm | 81°F27°C | 7 mph12 km/h West | Mostly Cloudy | |
| 6pm | 79°F26°C | 7 mph11 km/h West | Cloudy | |
| 7pm | 75°F24°C | 6 mph10 km/h Northwest | Thunderstorms | |
| 8pm | 73°F23°C | 5 mph7 km/h Northwest | Thunderstorms | |
| 9pm | 72°F22°C | 4 mph6 km/h Northwest | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 6 | 69°F20°C | 86°F30°C | 8 mph13 km/h from Southwest | Thunderstorms | Thunderstorms |
| September 7 | 59°F15°C | 73°F23°C | 6 mph9 km/h from Northwest | Rain | Clear |
| September 8 | 53°F12°C | 73°F23°C | 4 mph7 km/h from North | Clear | Mostly Clear |
| September 9 | 53°F12°C | 73°F23°C | 8 mph13 km/h from East | Partly Cloudy | Mostly Cloudy |
| September 10 | 57°F14°C | 75°F24°C | 5 mph9 km/h from North | Mostly Cloudy | Mostly Clear |
| September 11 | 56°F13°C | 78°F25°C | 6 mph9 km/h from North | Clear | Mostly Clear |
| September 12 | 56°F13°C | 74°F23°C | 7 mph12 km/h from Northeast | Mostly Clear | Clear |
No
Low of 59°F15°C, High of 73°F23°CWind: 6 mph9 km/h
Precipitation: 55% rain