Yes
you do need a jacket based on the weather in Diamond Bar, CA, USA 1 second ago
Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
48°F9°C & Clear
Wind is 7 mph11 km/h from the East, gusting to 10 mph16 km/h
| March 10 | ||||
| 8am | 48°F9°C | 7 mph12 km/h East | Clear | |
| 9am | 48°F9°C | 7 mph12 km/h East | Clear | |
| 10am | 48°F9°C | 7 mph11 km/h East | Clear | |
| 11am | 49°F9°C | 6 mph9 km/h East | Clear | |
| 12pm | 54°F12°C | 4 mph7 km/h East | Clear | |
| 1pm | 59°F15°C | 4 mph6 km/h East | Clear | |
| 2pm | 64°F18°C | 4 mph6 km/h Southeast | Clear | |
| 3pm | 67°F20°C | 3 mph5 km/h South | Clear | |
| 4pm | 69°F21°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 5pm | 70°F21°C | 6 mph9 km/h Southwest | Partly Cloudy | |
| 6pm | 71°F22°C | 7 mph11 km/h Southwest | Mostly Cloudy | |
| 7pm | 70°F21°C | 9 mph14 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| March 10 | 48°F9°C | 71°F22°C | 6 mph9 km/h from South | Mostly Clear | Cloudy |
| March 11 | 48°F9°C | 58°F15°C | 6 mph10 km/h from East | Rain | Partly Cloudy |
| March 12 | 50°F10°C | 60°F16°C | 7 mph11 km/h from South | Drizzle | Rain |
| March 13 | 45°F7°C | 55°F13°C | 11 mph18 km/h from West | Rain | Mostly Clear |
| March 14 | 39°F4°C | 56°F13°C | 5 mph8 km/h from Southwest | Mostly Cloudy | Drizzle |
| March 15 | 46°F8°C | 63°F17°C | 6 mph9 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| March 16 | 46°F8°C | 63°F17°C | 4 mph7 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 48°F9°C, High of 58°F15°CWind: 6 mph10 km/h
Precipitation: 70% rain