Weather forecast for tomorrowPort Arthur, WI
Weather forecast for tomorrow
Monday Oct 19, 2026
- 66°F
- 37°F
Mostly Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 3mphSE 124°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:26 am CDT
- Sunset: 6:12 pm CDT
- details ▼
Tomorrow, on Monday, October 19, mainly sunny skies with just a few high clouds are anticipated.
Temperature values will vary noticeably, extending from a comfortable 66.2°F to a cold 37.4°F.
The predicted high will feel warmer, consistent with September's climate average of 68.9°F.
Sunrise will be at 7:26 am and sunset at 6:12 pm; tomorrow's daylight will last for 10h and 46min.
Temperature values will vary noticeably, extending from a comfortable 66.2°F to a cold 37.4°F.
The predicted high will feel warmer, consistent with September's climate average of 68.9°F.
Sunrise will be at 7:26 am and sunset at 6:12 pm; tomorrow's daylight will last for 10h and 46min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 8%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:45°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphSSW 209°
- Humidity: 79%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:43°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 1mphSSW 201°
- Humidity: 83%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 1mphS 189°
- Humidity: 89%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Mostly Clear
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 0mphESE 123°
- Humidity: 93%
- Pressure: 30.3"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Sunrise: 7:26 am
- 8 am
- 39°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 1mphESE 107°
- Humidity: 94%
- Pressure: 30.33"Hg
- Visibility: 6mi
- UV index: 0
- details ▼
- 10 am
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphESE 109°
- Humidity: 77%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphESE 104°
- Humidity: 56%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphSE 134°
- Humidity: 49%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphSSE 152°
- Humidity: 48%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphSSE 153°
- Humidity: 58%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:12 pm
- 8 pm
- 50°F
- Feels like:50°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphSE 128°
- Humidity: 76%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:45°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 1mphESE 109°
- Humidity: 91%
- Pressure: 30.33"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Tomorrow, primarily bright and occasionally cloud-filled weather is forecasted.
The temperature will be between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will align more closely with September's average high of 68.9°F than with October's 52.7°F. The minimum temperature will be consistent with October's average low of 38.3°F.
The temperature will be between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will align more closely with September's average high of 68.9°F than with October's 52.7°F. The minimum temperature will be consistent with October's average low of 38.3°F.
Updated: Oct 18, 2026 @ 08:36:21 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, dry and sunny weather is expected throughout the day.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 52.7°F in October. The lowest temperature will be in line with the average low of 38.3°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 52.7°F in October. The lowest temperature will be in line with the average low of 38.3°F.
On Monday, in Port Arthur, sunrise will be at 7:26 am and sunset at 6:12 pm (CDT).
In Port Arthur, the length of the day tomorrow will be 10h and 46min.
