Yes
you do need a jacket based on the weather in Pomona (Westmont), California, United States 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
59°F15°C & Cloudy
Wind is 1 mph1 km/h from the Southeast, gusting to 2 mph4 km/h
| October 26 | ||||
| 4pm | 59°F15°C | 1 mph2 km/h Southeast | Mostly Cloudy | |
| 5pm | 63°F17°C | 1 mph2 km/h South | Partly Cloudy | |
| 6pm | 67°F19°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 7pm | 71°F22°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 8pm | 73°F23°C | 5 mph9 km/h Southwest | Mostly Clear | |
| 9pm | 75°F24°C | 6 mph10 km/h Southwest | Clear | |
| 10pm | 75°F24°C | 7 mph12 km/h Southwest | Clear | |
| 11pm | 74°F24°C | 7 mph11 km/h Southwest | Clear | |
| October 27 | ||||
| 12am | 73°F23°C | 6 mph10 km/h Southwest | Clear | |
| 1am | 70°F21°C | 5 mph8 km/h Southwest | Clear | |
| 2am | 67°F19°C | 3 mph5 km/h Southwest | Clear | |
| 3am | 64°F18°C | 2 mph3 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 26 | 54°F12°C | 75°F24°C | 4 mph7 km/h from Southwest | Mostly Clear | Clear |
| October 27 | 56°F13°C | 78°F26°C | 3 mph6 km/h from West | Clear | Clear |
| October 28 | 62°F17°C | 90°F32°C | 5 mph8 km/h from Northeast | Clear | Clear |
| October 29 | 64°F18°C | 90°F32°C | 4 mph7 km/h from Northeast | Clear | Clear |
| October 30 | 64°F18°C | 88°F31°C | 4 mph6 km/h from Southwest | Clear | Mostly Clear |
| October 31 | 59°F15°C | 83°F28°C | 3 mph5 km/h from Southwest | Clear | Clear |
| November 1 | 58°F15°C | 82°F28°C | 3 mph5 km/h from West | Clear | Clear |
Yes
Low of 55°F13°C, High of 78°F26°CWind: 3 mph6 km/h
Precipitation: None