No
you don't need a jacket based on the weather in Bay City, MI, USA 25 minutes ago
63°F17°C & Cloudy
Wind is 5 mph8 km/h from the East, gusting to 11 mph17 km/h
| September 19 | ||||
| 9am | 64°F18°C | 6 mph9 km/h East | Mostly Cloudy | |
| 10am | 66°F19°C | 6 mph9 km/h East | Mostly Cloudy | |
| 11am | 68°F20°C | 7 mph11 km/h East | Mostly Cloudy | |
| 12pm | 70°F21°C | 8 mph13 km/h Northeast | Partly Cloudy | |
| 1pm | 71°F22°C | 10 mph15 km/h Northeast | Partly Cloudy | |
| 2pm | 72°F22°C | 11 mph17 km/h Northeast | Partly Cloudy | |
| 3pm | 71°F22°C | 12 mph19 km/h Northeast | Partly Cloudy | |
| 4pm | 71°F21°C | 13 mph22 km/h Northeast | Partly Cloudy | |
| 5pm | 70°F21°C | 14 mph23 km/h Northeast | Mostly Clear | |
| 6pm | 68°F20°C | 14 mph23 km/h Northeast | Mostly Clear | |
| 7pm | 66°F19°C | 13 mph21 km/h Northeast | Mostly Clear | |
| 8pm | 65°F18°C | 11 mph18 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 19 | 60°F15°C | 72°F22°C | 10 mph15 km/h from Northeast | Partly Cloudy | Mostly Clear |
| September 20 | 57°F14°C | 77°F25°C | 10 mph16 km/h from East | Mostly Cloudy | Mostly Cloudy |
| September 21 | 58°F15°C | 75°F24°C | 7 mph12 km/h from South | Rain | Rain |
| September 22 | 62°F17°C | 75°F24°C | 8 mph13 km/h from West | Rain | Rain |
| September 23 | 62°F17°C | 72°F22°C | 8 mph13 km/h from Northeast | Drizzle | Partly Cloudy |
| September 24 | 58°F14°C | 68°F20°C | 11 mph18 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 25 | 53°F12°C | 69°F21°C | 9 mph14 km/h from Northeast | Mostly Clear | Mostly Clear |
Yes
Low of 56°F14°C, High of 77°F25°CWind: 10 mph16 km/h
Precipitation: 35% rain