Yes

you do need a jacket based on the weather in Leavenworth (Fort Leavenworth), Kansas, United States 1 second ago

Why? Because rain: where every drop seems to aim directly at your glasses!
64°F18°C & Rain

Wind is 8 mph13 km/h from the East, gusting to 17 mph28 km/h
May 25
1am63°F17°C8 mph13 km/h EastRain
2am62°F17°C9 mph14 km/h EastDrizzle
3am61°F16°C9 mph14 km/h NortheastDrizzle
4am60°F16°C10 mph16 km/h EastDrizzle
5am60°F16°C10 mph17 km/h NortheastCloudy
6am59°F15°C11 mph18 km/h NortheastDrizzle
7am59°F15°C12 mph19 km/h EastDrizzle
8am59°F15°C12 mph19 km/h EastDrizzle
9am59°F15°C12 mph20 km/h EastDrizzle
10am60°F15°C13 mph20 km/h EastRain
11am60°F16°C12 mph20 km/h NortheastRain
12pm61°F16°C13 mph21 km/h EastRain
DateLowHighWindDayNight
May 2459°F15°C74°F23°C7 mph12 km/h from EastMostly CloudyRain
May 2559°F15°C65°F18°C14 mph22 km/h from EastRainRain
May 2655°F13°C63°F17°C15 mph24 km/h from EastRainRain
May 2753°F12°C62°F17°C10 mph15 km/h from NorthDrizzlePartly Cloudy
May 2849°F9°C70°F21°C9 mph15 km/h from NorthwestPartly CloudyDrizzle
May 2953°F12°C72°F22°C4 mph7 km/h from NorthRainPartly Cloudy
May 3054°F12°C74°F23°C7 mph11 km/h from NorthwestPartly CloudyClear

No

Low of 59°F15°C, High of 65°F19°C
Wind: 14 mph22 km/h
Precipitation: 77% rain

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