No
you don't need a jacket based on the weather in San Dimas, CA 91773, USA 1 second ago
75°F24°C & Mostly Cloudy
Wind is 4 mph6 km/h from the Southeast, gusting to 10 mph16 km/h
| September 18 | ||||
| 1pm | 75°F24°C | 4 mph7 km/h Southeast | Mostly Cloudy | |
| 2pm | 78°F26°C | 4 mph7 km/h Southeast | Mostly Cloudy | |
| 3pm | 79°F26°C | 4 mph6 km/h South | Mostly Cloudy | |
| 4pm | 80°F27°C | 4 mph7 km/h West | Drizzle | |
| 5pm | 81°F27°C | 4 mph7 km/h West | Mostly Cloudy | |
| 6pm | 83°F29°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| 7pm | 84°F29°C | 6 mph9 km/h Southwest | Mostly Clear | |
| 8pm | 82°F28°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 9pm | 80°F27°C | 5 mph9 km/h Southwest | Partly Cloudy | |
| 10pm | 77°F25°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| 11pm | 75°F24°C | 4 mph6 km/h Southwest | Partly Cloudy | |
| September 19 | ||||
| 12am | 73°F23°C | 2 mph4 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 69°F21°C | 84°F29°C | 4 mph7 km/h from Southwest | Thunderstorms | Partly Cloudy |
| September 19 | 67°F20°C | 84°F29°C | 4 mph7 km/h from Southwest | Mostly Clear | Clear |
| September 20 | 66°F19°C | 88°F31°C | 4 mph7 km/h from Southwest | Clear | Clear |
| September 21 | 66°F19°C | 88°F31°C | 5 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 22 | 70°F21°C | 90°F32°C | 4 mph7 km/h from Southwest | Mostly Clear | Clear |
| September 23 | 70°F21°C | 91°F33°C | 5 mph8 km/h from Southwest | Clear | Clear |
| September 24 | 69°F20°C | 91°F33°C | 5 mph8 km/h from Southwest | Mostly Clear | Clear |
No
Low of 67°F20°C, High of 84°F29°CWind: 4 mph7 km/h
Precipitation: 52% rain