Yes
you do need a jacket based on the weather in Hertfordshire, UK 1 second ago
Why? Because sorry, it's too cool for just a hoodie and there are strong winds blowing out there!
58°F14°C & Partly Cloudy
Wind is 14 mph23 km/h from the Southwest, gusting to 25 mph41 km/h
| September 11 | ||||
| 5am | 58°F14°C | 15 mph24 km/h Southwest | Partly Cloudy | |
| 6am | 59°F15°C | 15 mph24 km/h Southwest | Partly Cloudy | |
| 7am | 61°F16°C | 15 mph25 km/h Southwest | Windy | |
| 8am | 62°F16°C | 17 mph27 km/h Southwest | Windy | |
| 9am | 63°F17°C | 16 mph25 km/h Southwest | Windy | |
| 10am | 61°F16°C | 16 mph26 km/h Southwest | Rain | |
| 11am | 62°F16°C | 16 mph26 km/h Southwest | Windy | |
| 12pm | 61°F16°C | 16 mph26 km/h Southwest | Windy | |
| 1pm | 59°F15°C | 16 mph26 km/h Southwest | Windy | |
| 2pm | 57°F14°C | 16 mph25 km/h Southwest | Windy | |
| 3pm | 56°F13°C | 14 mph22 km/h Southwest | Partly Cloudy | |
| 4pm | 55°F13°C | 14 mph22 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 10 | 52°F11°C | 63°F17°C | 14 mph23 km/h from Southwest | Rain | Partly Cloudy |
| September 11 | 51°F10°C | 63°F17°C | 14 mph23 km/h from Southwest | Drizzle | Drizzle |
| September 12 | 51°F11°C | 63°F17°C | 12 mph20 km/h from Southwest | Drizzle | Mostly Clear |
| September 13 | 48°F9°C | 65°F18°C | 12 mph20 km/h from South | Rain | Drizzle |
| September 14 | 55°F13°C | 62°F17°C | 23 mph37 km/h from Southwest | Drizzle | Windy |
| September 15 | 52°F11°C | 63°F17°C | 14 mph23 km/h from West | Mostly Cloudy | Drizzle |
| September 16 | 52°F11°C | 65°F18°C | 14 mph23 km/h from Southwest | Drizzle | Mostly Cloudy |
Yes
Low of 51°F11°C, High of 64°F18°CWind: 14 mph23 km/h
Precipitation: 39% rain