Williamsport 7-day weather forecast

Written by:
March 23, 2026
ESOlex // Shutterstock

Williamsport 7-day weather forecast

Stacker created the forecast for Williamsport, Pennsylvania using data from OpenWeather. This week's high is 72 °F on Sunday, while the low is 33 °F on Tuesday. There is expected to be 1 sunny day and rain on 6 days this week.

There are currently no weather alerts.

Monday, May 11

- High of 66 °F, low of 40 °F (32% humidity)
- Mostly cloudy with a 81% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:53 AM, sunset at 8:15 PM
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1 / 6
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Tuesday, May 12

- High of 63 °F, low of 33 °F (35% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Light breeze (6 mph wind)
- Sunrise at 5:52 AM, sunset at 8:16 PM
2 / 6
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Wednesday, May 13

- High of 60 °F, low of 46 °F (97% humidity)
- Overcast with a 100% chance of rain (13 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:51 AM, sunset at 8:17 PM
3 / 6
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Thursday, May 14

- High of 49 °F, low of 44 °F (82% humidity)
- Overcast with a 38% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:50 AM, sunset at 8:18 PM
4 / 6
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Friday, May 15

- High of 62 °F, low of 45 °F (64% humidity)
- Overcast with a 56% chance of rain (1 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 5:49 AM, sunset at 8:19 PM
5 / 6
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Saturday, May 16

- High of 69 °F, low of 47 °F (59% humidity)
- Overcast with a 100% chance of rain (12 mm of rain)
- Gentle breeze (8 mph wind)
- Sunrise at 5:48 AM, sunset at 8:20 PM
- New moon
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6 / 6
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Sunday, May 17

- High of 72 °F, low of 61 °F (65% humidity)
- Overcast with a 100% chance of rain (7 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 5:47 AM, sunset at 8:21 PM

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