Yes
you do need a jacket based on the weather in Willow Grove NAS, Willow Grove, PA 19090, USA 1 second ago
Why? Because it's quite chilly!
42°F6°C & Mostly Clear
Wind is 3 mph5 km/h from the North, gusting to 11 mph17 km/h
| October 27 | ||||
| 4am | 42°F5°C | 3 mph5 km/h North | Mostly Clear | |
| 5am | 40°F5°C | 4 mph6 km/h North | Mostly Clear | |
| 6am | 39°F4°C | 5 mph8 km/h North | Mostly Clear | |
| 7am | 38°F3°C | 5 mph8 km/h North | Mostly Clear | |
| 8am | 37°F3°C | 5 mph8 km/h North | Mostly Clear | |
| 9am | 37°F3°C | 5 mph8 km/h North | Mostly Clear | |
| 10am | 36°F2°C | 5 mph8 km/h North | Mostly Clear | |
| 11am | 37°F3°C | 5 mph8 km/h North | Clear | |
| 12pm | 38°F3°C | 6 mph9 km/h Northeast | Clear | |
| 1pm | 42°F6°C | 6 mph10 km/h Northeast | Clear | |
| 2pm | 47°F8°C | 7 mph11 km/h Northeast | Clear | |
| 3pm | 52°F11°C | 7 mph11 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 26 | 37°F3°C | 59°F15°C | 1 mph2 km/h from North | Mostly Clear | Mostly Clear |
| October 27 | 36°F2°C | 58°F14°C | 6 mph9 km/h from Northeast | Clear | Clear |
| October 28 | 38°F4°C | 57°F14°C | 10 mph17 km/h from Northeast | Mostly Clear | Partly Cloudy |
| October 29 | 42°F5°C | 58°F14°C | 10 mph16 km/h from Northeast | Mostly Cloudy | Rain |
| October 30 | 49°F9°C | 63°F17°C | 14 mph23 km/h from East | Heavy Rain | Rain |
| October 31 | 46°F8°C | 56°F13°C | 12 mph19 km/h from West | Mostly Cloudy | Partly Cloudy |
| November 1 | 42°F6°C | 56°F13°C | 12 mph20 km/h from West | Partly Cloudy | Partly Cloudy |
Yes
Low of 36°F2°C, High of 58°F15°CWind: 6 mph9 km/h
Precipitation: None