Weather forecast for tomorrowPort Arthur, TX
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 73°F
- 57°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 10mphENE 59°
- Humidity: 50%
- UV index: 7
- Sunrise: 7:19 am CDT
- Sunset: 6:42 pm CDT
- details ▼
On Sunday, in Port Arthur, sunny conditions are expected to continue.
The temperature will fluctuate from a high of a temperate 73.4°F to a low of a refreshing 57.2°F.
Tomorrow, expect colder conditions as the high matches November's average of 68.9°F, not October's.
Sunrise will be at 7:19 am and sunset at 6:42 pm; tomorrow's daylight will last for 11h and 22min.
The temperature will fluctuate from a high of a temperate 73.4°F to a low of a refreshing 57.2°F.
Tomorrow, expect colder conditions as the high matches November's average of 68.9°F, not October's.
Sunrise will be at 7:19 am and sunset at 6:42 pm; tomorrow's daylight will last for 11h and 22min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 72°C.
Coldest hour: 6 am 54°C.
Coldest hour: 6 am 54°C.
Chance of precipitation
Highest chance: 6 am 1%.
Hourly weather forecast
- 12 am
- 59°F
- Feels like:57°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNNE 29°
- Humidity: 63%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 57°F
- Feels like:55°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphNNE 30°
- Humidity: 66%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 55°F
- Feels like:54°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNE 36°
- Humidity: 69%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphNE 37°
- Humidity: 70%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:19 am
- 8 am
- 54°F
- Feels like:52°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNE 40°
- Humidity: 70%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphNE 56°
- Humidity: 55%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 68°F
- Feels like:68°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphENE 58°
- Humidity: 46%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 2 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphENE 58°
- Humidity: 40%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 4 pm
- 73°F
- Feels like:73°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphENE 68°
- Humidity: 38%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 6 pm
- 70°F
- Feels like:70°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphE 82°
- Humidity: 44%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:42 pm
- 8 pm
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphENE 66°
- Humidity: 60%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 61°F
- Feels like:61°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNE 56°
- Humidity: 69%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, bright and mostly sunny weather is expected.
The temperature will be between a minimum of 53.6°F and a maximum of 73.4°F. The warmest part of the day is expected around 4 pm.
The maximum is expected to resemble November's average high of 68.9°F rather than October's. The expected low will be also more comparable to what’s common in November than the current October average of 64.9°F.
The temperature will be between a minimum of 53.6°F and a maximum of 73.4°F. The warmest part of the day is expected around 4 pm.
The maximum is expected to resemble November's average high of 68.9°F rather than October's. The expected low will be also more comparable to what’s common in November than the current October average of 64.9°F.
Updated: Oct 17, 2026 @ 12:50:10 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
Tomorrow, in Port Arthur, sunny and dry conditions are anticipated.
Tomorrow, the maximum temperature will be 73.4°F, while the minimum temperature will be 57.2°F.
Tomorrow, the maximum temperature will be slightly cooler than the average highest temperature in October. Tomorrow, the lowest temperature will be also a couple of degrees lower than the average low temperature.
Tomorrow, the maximum temperature will be slightly cooler than the average highest temperature in October. Tomorrow, the lowest temperature will be also a couple of degrees lower than the average low temperature.
On Sunday, in Port Arthur, sunrise will be at 7:19 am and sunset at 6:42 pm (CDT).
In Port Arthur, the length of the day tomorrow will be 11h and 22min.
