No
you don't need a jacket based on the weather in Hemel Hempstead, UK 1 second ago
60°F16°C & Cloudy
Wind is 7 mph12 km/h from the Southwest, gusting to 15 mph24 km/h
| August 4 | ||||
| 2am | 60°F16°C | 8 mph13 km/h Southwest | Cloudy | |
| 3am | 62°F17°C | 11 mph17 km/h Southwest | Mostly Cloudy | |
| 4am | 64°F18°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 5am | 66°F19°C | 14 mph23 km/h Southwest | Cloudy | |
| 6am | 68°F20°C | 17 mph27 km/h Southwest | Windy | |
| 7am | 70°F21°C | 18 mph29 km/h Southwest | Windy | |
| 8am | 71°F22°C | 18 mph30 km/h Southwest | Windy | |
| 9am | 72°F22°C | 18 mph30 km/h Southwest | Windy | |
| 10am | 71°F22°C | 18 mph29 km/h Southwest | Windy | |
| 11am | 70°F21°C | 17 mph27 km/h Southwest | Drizzle | |
| 12pm | 70°F21°C | 16 mph26 km/h West | Drizzle | |
| 1pm | 70°F21°C | 15 mph24 km/h West | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 3 | 58°F14°C | 72°F22°C | 15 mph25 km/h from Southwest | Drizzle | Clear |
| August 4 | 53°F12°C | 70°F21°C | 15 mph24 km/h from West | Partly Cloudy | Partly Cloudy |
| August 5 | 50°F10°C | 72°F22°C | 7 mph11 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| August 6 | 55°F13°C | 74°F24°C | 14 mph22 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| August 7 | 57°F14°C | 72°F22°C | 10 mph16 km/h from West | Mostly Cloudy | Mostly Cloudy |
| August 8 | 56°F13°C | 73°F23°C | 7 mph11 km/h from West | Partly Cloudy | Partly Cloudy |
| August 9 | 57°F14°C | 73°F23°C | 13 mph20 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 53°F12°C, High of 71°F22°CWind: 15 mph24 km/h
Precipitation: None