Weather forecast for tomorrowSouth Williamsport, PA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 68°F
- 43°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 4mphWNW 302°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:24 am EDT
- Sunset: 6:21 pm EDT
- details ▼
Tomorrow, on Monday, occasional cloudiness will be present, but there will still be plenty of sun.
The temperature will fluctuate from a high of a delightful 68°F to a low of a chilly 42.8°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 72.1°F, not October's.
Sunrise will be at 7:24 am and sunset at 6:21 pm; tomorrow's daylight will last for 10h and 57min.
The temperature will fluctuate from a high of a delightful 68°F to a low of a chilly 42.8°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 72.1°F, not October's.
Sunrise will be at 7:24 am and sunset at 6:21 pm; tomorrow's daylight will last for 10h and 57min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 6 am 20%.
Hourly weather forecast
- 12 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 1mphNW 316°
- Humidity: 97%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 0mphNW 318°
- Humidity: 100%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 34°F
- Feels like:34°F
Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 1mphNNW 334°
- Humidity: 100%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:34°F
Mostly Clear
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 1mphNW 317°
- Humidity: 100%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:24 am
- 8 am
- 34°F
- Feels like:34°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 2mphNW 306°
- Humidity: 99%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 45°F
- Feels like:45°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphW 271°
- Humidity: 78%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphWNW 286°
- Humidity: 48%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNW 315°
- Humidity: 34%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 68°F
- Feels like:68°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNW 318°
- Humidity: 34%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphNNW 340°
- Humidity: 50%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:21 pm
- 8 pm
- 52°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphNNW 334°
- Humidity: 63%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:46°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphNW 322°
- Humidity: 75%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, primarily dry and sunny and occasionally gloomy weather is anticipated.
The temperature variation throughout the day will be considerable, as the minimum temperature will be 32°F while the maximum temperature will be 68°F. The warmest part of the day is anticipated around 4 pm.
The forecasted maximum is more close to September's typical high of 72.1°F than the average for October. The expected low will be consistent with the average minimum in October, which is 42.6°F.
The temperature variation throughout the day will be considerable, as the minimum temperature will be 32°F while the maximum temperature will be 68°F. The warmest part of the day is anticipated around 4 pm.
The forecasted maximum is more close to September's typical high of 72.1°F than the average for October. The expected low will be consistent with the average minimum in October, which is 42.6°F.
Updated: Oct 18, 2026 @ 18:29:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Monday, in South Williamsport, occasional cloudiness will be present, but there will still be plenty of sun.
Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 42.8°F.
The maximum temperature will be moderately higher than the average highest temperature of 59.4°F in October. The lowest temperature will be in line with the average low of 42.6°F.
The maximum temperature will be moderately higher than the average highest temperature of 59.4°F in October. The lowest temperature will be in line with the average low of 42.6°F.
On Monday, in South Williamsport, sunrise will be at 7:24 am and sunset at 6:21 pm (EDT).
Tomorrow, the daylight will last for 10h and 57min.
