No
you don't need a jacket based on the weather in Heathrow Airport (LHR), Hounslow, UK 1 second ago
76°F24°C & Clear
Wind is 9 mph15 km/h from the South, gusting to 19 mph30 km/h
| September 19 | ||||
| 12pm | 75°F24°C | 9 mph15 km/h South | Mostly Clear | |
| 1pm | 73°F23°C | 8 mph13 km/h South | Partly Cloudy | |
| 2pm | 70°F21°C | 8 mph12 km/h South | Partly Cloudy | |
| 3pm | 67°F20°C | 7 mph11 km/h South | Clear | |
| 4pm | 65°F18°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 5pm | 63°F17°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 6pm | 62°F17°C | 7 mph11 km/h Southwest | Partly Cloudy | |
| 7pm | 61°F16°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 8pm | 60°F15°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 9pm | 59°F15°C | 5 mph8 km/h Southwest | Partly Cloudy | |
| 10pm | 58°F15°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| 11pm | 58°F14°C | 4 mph6 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 59°F15°C | 77°F25°C | 6 mph10 km/h from South | Mostly Clear | Partly Cloudy |
| September 19 | 55°F13°C | 69°F20°C | 11 mph18 km/h from Southwest | Rain | Mostly Clear |
| September 20 | 49°F9°C | 58°F14°C | 8 mph13 km/h from North | Drizzle | Partly Cloudy |
| September 21 | 45°F7°C | 60°F15°C | 10 mph17 km/h from North | Partly Cloudy | Mostly Clear |
| September 22 | 42°F6°C | 59°F15°C | 7 mph11 km/h from North | Partly Cloudy | Partly Cloudy |
| September 23 | 45°F7°C | 62°F17°C | 7 mph11 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| September 24 | 48°F9°C | 62°F17°C | 6 mph10 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 55°F13°C, High of 69°F21°CWind: 11 mph18 km/h
Precipitation: 42% rain