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Weather in Port Arthur, United States 🇺🇸

Current Weather in Port Arthur

Clear
30°C
Feels like 34°C. Clear.
🌬️ 11 km/h S
💧 68% Humidity
🧭 1014 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 24°C
🌅 Sunrise: 06:51 AM
🌇 Sunset: 07:40 PM
Map Overlays:

Port Arthur currently sits at 30°C, clear, feeling like 34°C. The air is at 68% humidity and winds are about 11 km/h, and the UV index is 0 (low). Over the next few days, temperatures in Port Arthur range from about 24°C to 38°C.

Hourly Forecast for Port Arthur

22:00
Clear
29°
6%
23:00
Clear
29°
7%
00:00
Overcast
28°
20%
01:00
Overcast
28°
20%
02:00
Overcast
28°
23%
03:00
Overcast
27°
27%
04:00
Overcast
27°
27%
05:00
Overcast
27°
23%
06:00
Patchy rain nearby
25°
39%
07:00
Partly Cloudy
25°
17%
08:00
Sunny
26°
12%
09:00
Sunny
28°
8%
10:00
Patchy rain nearby
29°
29%
11:00
Light rain shower
30°
45%
12:00
Overcast
33°
11%
13:00
Light rain shower
35°
36%
14:00
Overcast
36°
10%
15:00
Patchy rain nearby
36°
10%
16:00
Overcast
34°
10%
17:00
Patchy rain nearby
33°
12%
18:00
Patchy rain nearby
32°
13%
19:00
Overcast
30°
15%
20:00
Overcast
28°
18%
21:00
Overcast
29°
17%

14-Day Forecast for Port Arthur

Sun, Aug 30
Sunny Sunny
38° / 26°
Mon, Aug 31
Overcast Overcast
36° / 25°
Tue, Sep 01
Overcast Overcast
32° / 24°
Wed, Sep 02
Overcast Overcast
35° / 26°
Thu, Sep 03
Overcast Overcast
34° / 26°
Fri, Sep 04
Overcast Overcast
33° / 26°
Sat, Sep 05
Sunny Sunny
34° / 26°
Sun, Sep 06
Sunny Sunny
36° / 26°
Mon, Sep 07
Sunny Sunny
37° / 26°
Tue, Sep 08
Sunny Sunny
37° / 26°
Wed, Sep 09
Sunny Sunny
38° / 26°
Thu, Sep 10
Sunny Sunny
39° / 27°
Fri, Sep 11
Sunny Sunny
40° / 25°
Sat, Sep 12
Partly Cloudy Partly Cloudy
38° / 25°

Additional Forecasts for Port Arthur

Air Quality

💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 117.0 μg/m³
O₃ (Ozone) 111.0 μg/m³
NO₂ (Nitrogen Dioxide) 8.5 μg/m³
SO₂ (Sulphur Dioxide) 3.3 μg/m³
PM2.5 (Fine particles) 17.3 μg/m³
PM10 (Coarse particles) 19.2 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Best Time to Be Outside in Port Arthur Tomorrow

There is no good daylight window left in Port Arthur today. Tomorrow, the most comfortable window looks like 07:00 to 10:00, when it is around 26°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Port Arthur

What is the temperature in Port Arthur right now?

It is currently 30°C (86°F) in Port Arthur, clear (feels like 34°C).

What's the weather like in Port Arthur right now?

Current weather in Port Arthur: Clear, humidity 68%, wind 11 km/h S.

What is today's forecast for Port Arthur?

Today in Port Arthur: high 38°C, low 26°C, sunny. Chance of rain: 5%.

What is the 7-day weather forecast for Port Arthur?

Daily highs and lows for Port Arthur:

  • 2026-08-30: 38°C / 26°C
  • 2026-08-31: 36°C / 25°C
  • 2026-09-01: 32°C / 24°C
  • 2026-09-02: 35°C / 26°C
  • 2026-09-03: 34°C / 26°C
  • 2026-09-04: 33°C / 26°C
  • 2026-09-05: 34°C / 26°C
Is it going to rain in Port Arthur today?

There is a 5% chance of rain in Port Arthur today.

What is the wind speed in Port Arthur right now?

Wind in Port Arthur is currently 11 km/h (7 mph) from the S.

What is the UV index in Port Arthur right now?

The UV index in Port Arthur is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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