No
you don't need a jacket based on the weather in Harrow, UK 1 second ago
62°F17°C & Clear
Wind is 1 mph1 km/h from the West, gusting to 1 mph2 km/h
| June 19 | ||||
| 12am | 61°F16°C | 1 mph1 km/h Northwest | Clear | |
| 1am | 62°F17°C | 1 mph2 km/h Northwest | Clear | |
| 2am | 65°F18°C | 1 mph2 km/h North | Clear | |
| 3am | 68°F20°C | 1 mph2 km/h East | Clear | |
| 4am | 72°F22°C | 1 mph2 km/h Southeast | Clear | |
| 5am | 76°F24°C | 1 mph2 km/h Southeast | Clear | |
| 6am | 79°F26°C | 1 mph2 km/h Southeast | Clear | |
| 7am | 81°F27°C | 2 mph3 km/h South | Clear | |
| 8am | 83°F28°C | 2 mph4 km/h South | Clear | |
| 9am | 85°F29°C | 2 mph4 km/h South | Clear | |
| 10am | 86°F30°C | 2 mph3 km/h South | Clear | |
| 11am | 86°F30°C | 1 mph2 km/h South | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 18 | 61°F16°C | 86°F30°C | 2 mph3 km/h from Southeast | Clear | Mostly Cloudy |
| June 19 | 63°F17°C | 82°F28°C | 8 mph13 km/h from Southeast | Cloudy | Clear |
| June 20 | 63°F17°C | 87°F31°C | 9 mph15 km/h from South | Partly Cloudy | Partly Cloudy |
| June 21 | 60°F15°C | 76°F24°C | 11 mph18 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| June 22 | 54°F12°C | 72°F22°C | 13 mph21 km/h from West | Partly Cloudy | Mostly Clear |
| June 23 | 56°F13°C | 76°F25°C | 12 mph19 km/h from West | Partly Cloudy | Mostly Clear |
| June 24 | 58°F15°C | 76°F24°C | 9 mph15 km/h from Southwest | Partly Cloudy | Partly Cloudy |
No
Low of 63°F17°C, High of 82°F28°CWind: 8 mph13 km/h
Precipitation: None