Allentown 7-day weather forecast

Written by:
March 9, 2026
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Allentown 7-day weather forecast

Stacker created the forecast for Allentown, Pennsylvania using data from OpenWeather. This week's high is 65 °F on Monday, while the low is 24 °F on Wednesday. There are expected to be 0 sunny days and rain on 6 days this week.

NWS Mount Holly NJ has issued a wind advisory until Tuesday at 02:00 AM.

Monday, March 16

- High of 65 °F, low of 41 °F (94% humidity)
- Overcast with a 100% chance of rain (23 mm of rain)
- Strong breeze (31 mph wind)
- Sunrise at 7:11 AM, sunset at 7:09 PM
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Tuesday, March 17

- High of 39 °F, low of 26 °F (34% humidity)
- Partly cloudy with a 100% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Fresh breeze (20 mph wind)
- Sunrise at 7:10 AM, sunset at 7:10 PM
2 / 6
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Wednesday, March 18

- High of 38 °F, low of 24 °F (34% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 7:08 AM, sunset at 7:11 PM
- New moon
3 / 6
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Thursday, March 19

- High of 43 °F, low of 28 °F (53% humidity)
- Overcast with a 25% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 7:07 AM, sunset at 7:12 PM
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Friday, March 20

- High of 53 °F, low of 35 °F (69% humidity)
- Overcast with a 100% chance of rain (7 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 7:05 AM, sunset at 7:13 PM
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Saturday, March 21

- High of 51 °F, low of 35 °F (38% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- Moderate breeze (13 mph wind)
- Sunrise at 7:03 AM, sunset at 7:14 PM
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Sunday, March 22

- High of 52 °F, low of 41 °F (97% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Moderate breeze (14 mph wind)
- Sunrise at 7:02 AM, sunset at 7:15 PM

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