Yes

you do need a jacket based on the weather in Maryland, USA 1 second ago

Why? Because it's so windy, even the squirrels are holding onto branches for dear life!
91°F33°C & Mostly Clear

Wind is 11 mph17 km/h from the Southwest, gusting to 21 mph33 km/h
July 17
3pm92°F33°C10 mph17 km/h SouthwestMostly Clear
4pm92°F33°C10 mph17 km/h SouthwestPartly Cloudy
5pm91°F33°C9 mph15 km/h SouthwestPartly Cloudy
6pm88°F31°C7 mph11 km/h WestMostly Cloudy
7pm87°F31°C6 mph10 km/h WestPartly Cloudy
8pm85°F30°C6 mph10 km/h WestMostly Clear
9pm83°F29°C6 mph10 km/h WestPartly Cloudy
10pm81°F27°C6 mph10 km/h WestPartly Cloudy
11pm80°F27°C6 mph10 km/h WestMostly Cloudy
July 18
12am79°F26°C6 mph10 km/h WestMostly Cloudy
1am78°F26°C6 mph10 km/h WestMostly Cloudy
2am77°F25°C6 mph10 km/h NorthwestPartly Cloudy
DateLowHighWindDayNight
July 1773°F23°C92°F33°C7 mph12 km/h from SouthwestMostly ClearPartly Cloudy
July 1875°F24°C85°F30°C4 mph7 km/h from NorthMostly CloudyMostly Cloudy
July 1973°F23°C85°F30°C4 mph6 km/h from SouthRainDrizzle
July 2073°F23°C89°F31°C7 mph11 km/h from WestRainPartly Cloudy
July 2171°F22°C84°F29°C7 mph11 km/h from NorthMostly ClearMostly Clear
July 2265°F18°C82°F28°C5 mph9 km/h from EastMostly ClearPartly Cloudy
July 2368°F20°C86°F30°C6 mph9 km/h from SouthPartly CloudyClear

No

Low of 74°F24°C, High of 85°F30°C
Wind: 4 mph7 km/h
Precipitation: 27% rain

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