Yes

you do need a jacket based on the weather in Florissant, MO 63033, USA 1 second ago

Why? Because the wind could blow a wig clean off your head!
72°F22°C & Clear

Wind is 12 mph20 km/h from the Northwest, gusting to 22 mph36 km/h
May 30
2pm73°F23°C13 mph21 km/h NorthwestMostly Clear
3pm74°F23°C13 mph21 km/h NorthwestMostly Clear
4pm76°F24°C13 mph21 km/h NorthwestMostly Clear
5pm77°F25°C12 mph20 km/h NorthwestClear
6pm77°F25°C12 mph19 km/h NorthwestClear
7pm76°F25°C10 mph15 km/h NorthwestClear
8pm75°F24°C8 mph13 km/h WestClear
9pm72°F22°C7 mph11 km/h WestClear
10pm69°F21°C7 mph11 km/h WestClear
11pm67°F20°C7 mph11 km/h WestMostly Clear
May 31
12am66°F19°C7 mph12 km/h WestMostly Clear
1am65°F18°C8 mph12 km/h WestClear
DateLowHighWindDayNight
May 3057°F14°C77°F25°C10 mph16 km/h from NorthwestMostly ClearClear
May 3160°F15°C81°F27°C10 mph17 km/h from WestMostly ClearMostly Clear
June 160°F16°C81°F27°C6 mph9 km/h from EastClearClear
June 261°F16°C86°F30°C8 mph13 km/h from SouthMostly ClearMostly Clear
June 367°F19°C87°F31°C13 mph21 km/h from SouthMostly CloudyDrizzle
June 467°F20°C79°F26°C10 mph16 km/h from SouthwestDrizzleRain
June 564°F18°C79°F26°C6 mph9 km/h from NortheastRainMostly Cloudy

No

Low of 60°F16°C, High of 82°F28°C
Wind: 10 mph17 km/h
Precipitation: None

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