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Williamsport 7-day weather forecast
Stacker created the forecast for Williamsport, Pennsylvania using data from OpenWeather. This week's high is 80 °F on Thursday, while the low is 46 °F on Tuesday. There are expected to be 4 sunny days and rain on 1 day this week.
There are currently no weather alerts.
Monday, September 8
- High of 75 °F, low of 47 °F (36% humidity)- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:41 AM, sunset at 7:29 PM

1 / 6
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Tuesday, September 9
- High of 75 °F, low of 46 °F (38% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:42 AM, sunset at 7:28 PM
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:42 AM, sunset at 7:28 PM

2 / 6
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Wednesday, September 10
- High of 74 °F, low of 48 °F (44% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:43 AM, sunset at 7:26 PM
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:43 AM, sunset at 7:26 PM

3 / 6
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Thursday, September 11
- High of 80 °F, low of 50 °F (31% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:44 AM, sunset at 7:24 PM
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:44 AM, sunset at 7:24 PM

4 / 6
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Friday, September 12
- High of 80 °F, low of 52 °F (37% humidity)
- Sunny with a 0% chance of rain
- Light breeze (4 mph wind)
- Sunrise at 6:45 AM, sunset at 7:22 PM
- Sunny with a 0% chance of rain
- Light breeze (4 mph wind)
- Sunrise at 6:45 AM, sunset at 7:22 PM

5 / 6
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Saturday, September 13
- High of 79 °F, low of 55 °F (46% humidity)
- Partly cloudy with a 0% chance of rain
- Light breeze (7 mph wind)
- Sunrise at 6:46 AM, sunset at 7:21 PM
- Partly cloudy with a 0% chance of rain
- Light breeze (7 mph wind)
- Sunrise at 6:46 AM, sunset at 7:21 PM
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6 / 6
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Sunday, September 14
- High of 72 °F, low of 57 °F (58% humidity)
- Overcast with a 99% chance of rain (2 mm of rain)
- Light breeze (4 mph wind)
- Sunrise at 6:47 AM, sunset at 7:19 PM
- Last quarter moon
- Overcast with a 99% chance of rain (2 mm of rain)
- Light breeze (4 mph wind)
- Sunrise at 6:47 AM, sunset at 7:19 PM
- Last quarter moon