Yes
you do need a jacket based on the weather in Horsham, PA, USA 1 second ago
Why? Because it's not very warm out.
57°F14°C & Mostly Cloudy
Wind is 7 mph11 km/h from the SE, gusting to 14 mph23 km/h
| April 19 | ||||
| 7pm | 56°F14°C | 7 mph11 km/h SE | Mostly Cloudy | |
| 8pm | 55°F13°C | 6 mph10 km/h SE | Cloudy | |
| 9pm | 54°F12°C | 5 mph9 km/h SE | Cloudy | |
| 10pm | 53°F12°C | 5 mph9 km/h SE | Cloudy | |
| 11pm | 52°F11°C | 6 mph9 km/h SE | Cloudy | |
| April 20 | ||||
| 12am | 52°F11°C | 5 mph8 km/h S | Cloudy | |
| 1am | 51°F10°C | 4 mph7 km/h S | Cloudy | |
| 2am | 50°F10°C | 4 mph6 km/h S | Cloudy | |
| 3am | 50°F10°C | 4 mph6 km/h S | Cloudy | |
| 4am | 49°F10°C | 3 mph5 km/h SW | Cloudy | |
| 5am | 49°F9°C | 4 mph6 km/h SW | Rain | |
| 6am | 49°F10°C | 4 mph6 km/h W | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 19 | 43°F6°C | 58°F14°C | 4 mph6 km/h from SE | Cloudy | Rain |
| April 20 | 46°F8°C | 66°F19°C | 9 mph14 km/h from W | Partly Cloudy | Mostly Clear |
| April 21 | 37°F3°C | 55°F13°C | 8 mph13 km/h from W | Mostly Cloudy | Partly Cloudy |
| April 22 | 38°F3°C | 60°F16°C | 8 mph12 km/h from NW | Clear | Clear |
| April 23 | 37°F3°C | 66°F19°C | 9 mph14 km/h from S | Mostly Clear | Mostly Cloudy |
| April 24 | 45°F7°C | 60°F15°C | 12 mph19 km/h from W | Drizzle | Clear |
| April 25 | 39°F4°C | 60°F15°C | 8 mph12 km/h from NW | Mostly Clear | Partly Cloudy |
Yes
Low of 46°F8°C, High of 66°F19°CWind: 9 mph14 km/h
Precipitation: None