No
you don't need a jacket based on the weather in Gaithersburg, MD, USA 1 second ago
64°F18°C & Mostly Clear
Wind is 4 mph7 km/h from the Southwest, gusting to 12 mph19 km/h
| September 14 | ||||
| 2am | 64°F18°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 3am | 63°F17°C | 4 mph6 km/h South | Partly Cloudy | |
| 4am | 62°F16°C | 4 mph6 km/h South | Mostly Clear | |
| 5am | 61°F16°C | 2 mph4 km/h South | Mostly Clear | |
| 6am | 60°F16°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 7am | 60°F15°C | 1 mph2 km/h South | Mostly Clear | |
| 8am | 63°F17°C | 2 mph3 km/h West | Mostly Clear | |
| 9am | 67°F20°C | 2 mph3 km/h West | Mostly Clear | |
| 10am | 72°F22°C | 2 mph3 km/h Northwest | Mostly Clear | |
| 11am | 76°F25°C | 1 mph2 km/h North | Mostly Clear | |
| 12pm | 80°F26°C | 1 mph2 km/h North | Mostly Clear | |
| 1pm | 82°F28°C | 2 mph3 km/h North | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 14 | 59°F15°C | 84°F29°C | 3 mph4 km/h from North | Mostly Clear | Mostly Clear |
| September 15 | 61°F16°C | 81°F27°C | 6 mph10 km/h from East | Mostly Cloudy | Mostly Cloudy |
| September 16 | 61°F16°C | 74°F23°C | 9 mph14 km/h from Northeast | Drizzle | Thunderstorms |
| September 17 | 61°F16°C | 69°F20°C | 7 mph12 km/h from Northeast | Thunderstorms | Rain |
| September 18 | 62°F17°C | 77°F25°C | 3 mph5 km/h from Northeast | Drizzle | Mostly Clear |
| September 19 | 63°F17°C | 81°F27°C | 4 mph6 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 20 | 63°F17°C | 80°F26°C | 5 mph9 km/h from East | Mostly Clear | Thunderstorms |
No
Low of 61°F16°C, High of 81°F27°CWind: 6 mph10 km/h
Precipitation: None