Yes
you do need a jacket based on the weather in Allentown, PA, USA 1 second ago
Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
40°F4°C & Cloudy
Wind is 4 mph7 km/h from the West, gusting to 9 mph14 km/h
| March 25 | ||||
| 4am | 40°F4°C | 5 mph7 km/h West | Cloudy | |
| 5am | 38°F3°C | 5 mph8 km/h West | Mostly Cloudy | |
| 6am | 37°F3°C | 5 mph8 km/h Southwest | Cloudy | |
| 7am | 37°F3°C | 7 mph11 km/h West | Cloudy | |
| 8am | 39°F4°C | 8 mph12 km/h West | Cloudy | |
| 9am | 42°F6°C | 10 mph16 km/h West | Partly Cloudy | |
| 10am | 45°F7°C | 13 mph21 km/h West | Mostly Clear | |
| 11am | 48°F9°C | 15 mph25 km/h West | Windy | |
| 12pm | 50°F10°C | 16 mph25 km/h West | Windy | |
| 1pm | 52°F11°C | 15 mph25 km/h West | Windy | |
| 2pm | 53°F12°C | 15 mph24 km/h West | Mostly Clear | |
| 3pm | 55°F13°C | 14 mph23 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| March 25 | 37°F3°C | 55°F13°C | 13 mph21 km/h from West | Partly Cloudy | Partly Cloudy |
| March 26 | 32°F0°C | 47°F8°C | 11 mph17 km/h from West | Partly Cloudy | Mostly Clear |
| March 27 | 30°F-1°C | 51°F10°C | 9 mph14 km/h from West | Mostly Clear | Mostly Clear |
| March 28 | 38°F3°C | 59°F15°C | 6 mph9 km/h from Southwest | Mostly Cloudy | Cloudy |
| March 29 | 48°F9°C | 68°F20°C | 7 mph11 km/h from Northeast | Rain | Mostly Cloudy |
| March 30 | 45°F7°C | 59°F15°C | 7 mph11 km/h from East | Rain | Rain |
| March 31 | 50°F10°C | 70°F21°C | 12 mph19 km/h from Southwest | Rain | Drizzle |
Yes
Low of 32°F0°C, High of 47°F9°CWind: 11 mph17 km/h
Precipitation: None