Yes
you do need a jacket based on the weather in Norristown, PA 19401, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
52°F11°C & Clear
Wind is 7 mph11 km/h from the West, gusting to 16 mph25 km/h
| March 10 | ||||
| 11am | 53°F12°C | 7 mph11 km/h West | Clear | |
| 12pm | 56°F14°C | 6 mph10 km/h West | Clear | |
| 1pm | 60°F15°C | 5 mph9 km/h West | Clear | |
| 2pm | 62°F17°C | 5 mph8 km/h West | Clear | |
| 3pm | 63°F17°C | 5 mph7 km/h West | Clear | |
| 4pm | 64°F18°C | 5 mph8 km/h West | Clear | |
| 5pm | 64°F18°C | 5 mph8 km/h Southwest | Clear | |
| 6pm | 63°F17°C | 5 mph8 km/h Southwest | Clear | |
| 7pm | 58°F14°C | 4 mph6 km/h Southwest | Clear | |
| 8pm | 55°F13°C | 4 mph6 km/h South | Clear | |
| 9pm | 52°F11°C | 5 mph8 km/h South | Clear | |
| 10pm | 50°F10°C | 4 mph7 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| March 10 | 38°F3°C | 64°F18°C | 4 mph7 km/h from West | Clear | Clear |
| March 11 | 40°F4°C | 66°F19°C | 7 mph11 km/h from Southwest | Clear | Mostly Clear |
| March 12 | 42°F5°C | 60°F15°C | 7 mph11 km/h from East | Partly Cloudy | Mostly Cloudy |
| March 13 | 40°F4°C | 59°F15°C | 6 mph10 km/h from East | Mostly Cloudy | Partly Cloudy |
| March 14 | 39°F4°C | 60°F15°C | 7 mph11 km/h from East | Partly Cloudy | Mostly Cloudy |
| March 15 | 42°F6°C | 67°F20°C | 9 mph14 km/h from Southeast | Cloudy | Mostly Cloudy |
| March 16 | 57°F14°C | 68°F20°C | 17 mph27 km/h from South | Rain | Rain |
Yes
Low of 40°F5°C, High of 66°F19°CWind: 7 mph11 km/h
Precipitation: None