No
you don't need a jacket based on the weather in St Clair County, IL, USA 1 second ago
74°F23°C & Mostly Clear
Wind is 7 mph12 km/h from the South, gusting to 17 mph27 km/h
| June 20 | ||||
| 10am | 78°F25°C | 10 mph16 km/h South | Mostly Clear | |
| 11am | 81°F27°C | 11 mph17 km/h South | Clear | |
| 12pm | 83°F28°C | 13 mph21 km/h South | Clear | |
| 1pm | 86°F30°C | 14 mph22 km/h South | Clear | |
| 2pm | 88°F31°C | 13 mph21 km/h Southwest | Clear | |
| 3pm | 89°F32°C | 12 mph19 km/h South | Clear | |
| 4pm | 90°F32°C | 11 mph17 km/h South | Mostly Clear | |
| 5pm | 90°F32°C | 10 mph17 km/h South | Mostly Clear | |
| 6pm | 90°F32°C | 11 mph18 km/h South | Mostly Clear | |
| 7pm | 89°F32°C | 11 mph17 km/h South | Clear | |
| 8pm | 87°F30°C | 10 mph16 km/h South | Clear | |
| 9pm | 84°F29°C | 9 mph15 km/h South | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 20 | 65°F18°C | 90°F32°C | 11 mph17 km/h from South | Mostly Clear | Clear |
| June 21 | 75°F24°C | 95°F35°C | 12 mph20 km/h from South | Clear | Clear |
| June 22 | 76°F24°C | 95°F35°C | 10 mph17 km/h from South | Clear | Clear |
| June 23 | 75°F24°C | 94°F34°C | 7 mph12 km/h from South | Mostly Clear | Clear |
| June 24 | 75°F24°C | 93°F34°C | 7 mph11 km/h from South | Mostly Clear | Clear |
| June 25 | 76°F24°C | 93°F34°C | 7 mph11 km/h from Southwest | Clear | Clear |
| June 26 | 75°F24°C | 91°F33°C | 7 mph11 km/h from South | Mostly Clear | Mostly Clear |
No
Low of 75°F24°C, High of 95°F35°CWind: 12 mph20 km/h
Precipitation: None