No
you don't need a jacket based on the weather in Hemel Hempstead, UK 1 second ago
77°F25°C & Clear
Wind is 3 mph5 km/h from the Southwest, gusting to 10 mph16 km/h
| August 10 | ||||
| 1pm | 77°F25°C | 4 mph6 km/h Southwest | Clear | |
| 2pm | 76°F24°C | 3 mph5 km/h South | Clear | |
| 3pm | 73°F23°C | 2 mph4 km/h South | Clear | |
| 4pm | 70°F21°C | 3 mph4 km/h South | Clear | |
| 5pm | 67°F20°C | 5 mph7 km/h Southeast | Clear | |
| 6pm | 65°F18°C | 5 mph8 km/h South | Clear | |
| 7pm | 63°F17°C | 5 mph8 km/h South | Mostly Clear | |
| 8pm | 62°F17°C | 4 mph7 km/h Southwest | Mostly Cloudy | |
| 9pm | 61°F16°C | 3 mph5 km/h South | Partly Cloudy | |
| 10pm | 60°F15°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 11pm | 59°F15°C | 3 mph4 km/h Southwest | Mostly Clear | |
| August 11 | ||||
| 12am | 58°F15°C | 2 mph3 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 9 | 54°F12°C | 79°F26°C | 2 mph4 km/h from South | Mostly Clear | Mostly Clear |
| August 10 | 58°F14°C | 82°F28°C | 5 mph8 km/h from Southeast | Partly Cloudy | Mostly Cloudy |
| August 11 | 64°F18°C | 86°F30°C | 8 mph12 km/h from East | Mostly Clear | Clear |
| August 12 | 62°F17°C | 84°F29°C | 9 mph14 km/h from South | Partly Cloudy | Mostly Cloudy |
| August 13 | 62°F17°C | 78°F26°C | 8 mph14 km/h from Southwest | Partly Cloudy | Mostly Clear |
| August 14 | 61°F16°C | 78°F26°C | 6 mph9 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| August 15 | 61°F16°C | 76°F25°C | 7 mph12 km/h from Northeast | Mostly Cloudy | Mostly Clear |
Yes
Low of 58°F15°C, High of 82°F28°CWind: 5 mph8 km/h
Precipitation: None