Yes
you do need a jacket based on the weather in Rockville, MD, USA 1 second ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
47°F8°C & Clear
Wind is 6 mph10 km/h from the North, gusting to 16 mph25 km/h
| October 17 | ||||
| 4am | 45°F7°C | 7 mph11 km/h North | Clear | |
| 5am | 43°F6°C | 6 mph10 km/h North | Clear | |
| 6am | 42°F6°C | 6 mph10 km/h North | Clear | |
| 7am | 41°F5°C | 6 mph10 km/h North | Clear | |
| 8am | 40°F5°C | 6 mph10 km/h Northwest | Clear | |
| 9am | 40°F4°C | 6 mph10 km/h Northwest | Clear | |
| 10am | 40°F4°C | 6 mph10 km/h Northwest | Clear | |
| 11am | 40°F5°C | 5 mph9 km/h Northwest | Clear | |
| 12pm | 41°F5°C | 5 mph8 km/h Northwest | Clear | |
| 1pm | 47°F8°C | 6 mph9 km/h Northwest | Clear | |
| 2pm | 52°F11°C | 7 mph11 km/h Northwest | Clear | |
| 3pm | 56°F14°C | 8 mph12 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 16 | 43°F6°C | 63°F17°C | 5 mph8 km/h from North | Clear | Clear |
| October 17 | 40°F4°C | 64°F18°C | 6 mph10 km/h from Northwest | Clear | Mostly Clear |
| October 18 | 47°F8°C | 70°F21°C | 5 mph8 km/h from South | Partly Cloudy | Mostly Clear |
| October 19 | 54°F12°C | 74°F23°C | 13 mph20 km/h from South | Mostly Cloudy | Rain |
| October 20 | 49°F10°C | 63°F17°C | 12 mph19 km/h from West | Drizzle | Clear |
| October 21 | 45°F7°C | 67°F20°C | 7 mph11 km/h from Southwest | Mostly Clear | Mostly Clear |
| October 22 | 45°F7°C | 60°F15°C | 9 mph15 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 40°F5°C, High of 64°F18°CWind: 6 mph10 km/h
Precipitation: None