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Current weather in Lake Arthur is few clouds.

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This page shows hourly weather forecast for Lake Arthur, including temperature, wind, precipitation, humidity and cloud cover.

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Weather data for Lake Arthur is updated regularly with the latest available observations and forecasts.

Now · 6:59 PM

Lake Arthur Weather & Hourly Forecast

United States · Louisiana · 70549

84°F

Mostly sunny

Feels like: 94°F

💧 Humidity 79% 🌡 Pressure 29.97 inHg 💨 Wind 1 mph 👁 Visibility 19.6 mi ☁ Clouds 21% ☀️ UV index 0.3 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Lake Arthur

Today

7:00 PM

Mostly sunny

84° 💧 0.000 in 💨 1 mph H 79%29.97 inHg

10:00 PM

Clear night

80° 💧 None 💨 1 mph H 90%30.03 inHg

Tomorrow

1:00 AM

Clear night

79° 💧 None 💨 1 mph H 91%30.03 inHg

4:00 AM

Mostly clear night

77° 💧 0.000 in 💨 1 mph H 97%30.06 inHg

7:00 AM

Fog

75° 💧 None 💨 2 mph H 99%30.06 inHg

10:00 AM

Mostly sunny

86° 💧 0.012 in 💨 2 mph H 75%30.09 inHg

1:00 PM

Light rain

90° 💧 0.015 in 💨 3 mph H 64%30.09 inHg

4:00 PM

Mostly sunny

91° 💧 0.027 in 💨 3 mph H 61%30.03 inHg

7:00 PM

Sunny

83° 💧 0.002 in 💨 2 mph H 86%30.03 inHg

10:00 PM

Clear night

82° 💧 None 💨 2 mph H 88%30.06 inHg

Wednesday

1:00 AM

Clear night

80° 💧 None 💨 0 mph H 94%30.09 inHg

4:00 AM

Clear night

77° 💧 None 💨 3 mph H 96%30.09 inHg

7:00 AM

Sunny

77° 💧 None 💨 5 mph H 98%30.12 inHg

10:00 AM

Sunny

86° 💧 None 💨 7 mph H 74%30.15 inHg

1:00 PM

Sunny

92° 💧 0.011 in 💨 8 mph H 53%30.15 inHg

4:00 PM

Light rain

88° 💧 0.020 in 💨 11 mph H 67%30.12 inHg

Today

7:00 PM

Mostly sunny

84° 💧 0.000 in 💨 1 mph H 79%29.97 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 1 mph H 85%30.00 inHg

9:00 PM

Mostly clear night

81° 💧 None 💨 0 mph H 86%30.03 inHg

10:00 PM

Clear night

80° 💧 None 💨 1 mph H 90%30.03 inHg

11:00 PM

Clear night

79° 💧 None 💨 2 mph H 91%30.03 inHg

Tomorrow

12:00 AM

Clear night

79° 💧 None 💨 2 mph H 92%30.03 inHg

1:00 AM

Clear night

79° 💧 None 💨 1 mph H 91%30.03 inHg

2:00 AM

Clear night

78° 💧 None 💨 0 mph H 92%30.03 inHg

3:00 AM

Clear night

77° 💧 None 💨 1 mph H 94%30.03 inHg

4:00 AM

Mostly clear night

77° 💧 0.000 in 💨 1 mph H 97%30.06 inHg

5:00 AM

Clear night

76° 💧 None 💨 2 mph H 99%30.06 inHg

6:00 AM

Mostly clear night

76° 💧 None 💨 2 mph H 99%30.06 inHg

7:00 AM

Fog

75° 💧 None 💨 2 mph H 99%30.06 inHg

8:00 AM

Sunny

78° 💧 None 💨 4 mph H 94%30.09 inHg

9:00 AM

Sunny

83° 💧 None 💨 3 mph H 84%30.09 inHg

10:00 AM

Mostly sunny

86° 💧 0.002 in 💨 2 mph H 75%30.09 inHg

11:00 AM

Mostly sunny

88° 💧 0.003 in 💨 2 mph H 69%30.09 inHg

12:00 PM

Light rain

89° 💧 0.008 in 💨 2 mph H 65%30.09 inHg

1:00 PM

Light rain

90° 💧 0.009 in 💨 3 mph H 64%30.09 inHg

2:00 PM

Mostly sunny

90° 💧 0.003 in 💨 3 mph H 64%30.09 inHg

3:00 PM

Sunny

91° 💧 0.002 in 💨 3 mph H 62%30.06 inHg

4:00 PM

Mostly sunny

91° 💧 0.001 in 💨 3 mph H 61%30.03 inHg

5:00 PM

Light thunderstorms

87° 💧 0.008 in 💨 6 mph H 69%30.03 inHg

6:00 PM

Light rain

85° 💧 0.018 in 💨 4 mph H 80%30.03 inHg

7:00 PM

Sunny

83° 💧 0.002 in 💨 2 mph H 86%30.03 inHg

8:00 PM

Clear night

82° 💧 0.000 in 💨 2 mph H 88%30.03 inHg

9:00 PM

Clear night

82° 💧 None 💨 2 mph H 87%30.06 inHg

10:00 PM

Clear night

82° 💧 None 💨 2 mph H 88%30.06 inHg

11:00 PM

Clear night

81° 💧 None 💨 1 mph H 89%30.09 inHg

Wednesday

12:00 AM

Clear night

81° 💧 None 💨 1 mph H 91%30.09 inHg

1:00 AM

Clear night

80° 💧 None 💨 0 mph H 94%30.09 inHg

2:00 AM

Clear night

78° 💧 None 💨 2 mph H 97%30.09 inHg

3:00 AM

Clear night

78° 💧 None 💨 3 mph H 97%30.09 inHg

4:00 AM

Clear night

77° 💧 None 💨 3 mph H 96%30.09 inHg

5:00 AM

Clear night

77° 💧 None 💨 3 mph H 96%30.09 inHg

6:00 AM

Clear night

77° 💧 None 💨 4 mph H 97%30.12 inHg

7:00 AM

Sunny

77° 💧 None 💨 5 mph H 98%30.12 inHg

8:00 AM

Sunny

79° 💧 None 💨 6 mph H 94%30.12 inHg

9:00 AM

Sunny

82° 💧 None 💨 6 mph H 86%30.15 inHg

10:00 AM

Sunny

86° 💧 None 💨 7 mph H 74%30.15 inHg

11:00 AM

Sunny

89° 💧 None 💨 8 mph H 60%30.18 inHg

12:00 PM

Sunny

91° 💧 None 💨 9 mph H 54%30.18 inHg

1:00 PM

Sunny

92° 💧 0.000 in 💨 8 mph H 53%30.15 inHg

2:00 PM

Mostly sunny

92° 💧 0.004 in 💨 8 mph H 53%30.12 inHg

3:00 PM

Light rain

93° 💧 0.007 in 💨 8 mph H 52%30.12 inHg

4:00 PM

Light rain

88° 💧 0.012 in 💨 11 mph H 67%30.12 inHg

5:00 PM

Light rain

87° 💧 0.006 in 💨 10 mph H 69%30.09 inHg

6:00 PM

Partly cloudy

85° 💧 0.002 in 💨 8 mph H 75%30.09 inHg

7:00 PM

Mostly cloudy

83° 💧 None 💨 6 mph H 79%30.09 inHg

8:00 PM

Mostly cloudy night

82° 💧 None 💨 5 mph H 82%30.12 inHg

9:00 PM

Mostly cloudy night

81° 💧 None 💨 6 mph H 85%30.12 inHg

10:00 PM

Mostly cloudy night

81° 💧 None 💨 7 mph H 86%30.15 inHg

11:00 PM

Overcast night

80° 💧 None 💨 8 mph H 87%30.15 inHg

Thursday

12:00 AM

Overcast night

80° 💧 None 💨 7 mph H 89%30.15 inHg

1:00 AM

Overcast night

79° 💧 None 💨 7 mph H 90%30.12 inHg

2:00 AM

Overcast night

79° 💧 None 💨 6 mph H 91%30.15 inHg

3:00 AM

Mostly cloudy night

79° 💧 None 💨 6 mph H 92%30.12 inHg

4:00 AM

Clear night

78° 💧 None 💨 6 mph H 93%30.12 inHg

5:00 AM

Clear night

78° 💧 None 💨 6 mph H 93%30.12 inHg

6:00 AM

Clear night

78° 💧 None 💨 6 mph H 94%30.12 inHg

7:00 AM

Sunny

77° 💧 None 💨 7 mph H 95%30.15 inHg

10:00 AM

Sunny

85° 💧 None 💨 11 mph H 70%30.15 inHg

1:00 PM

Mostly sunny

91° 💧 None 💨 11 mph H 53%30.15 inHg

4:00 PM

Mostly sunny

91° 💧 None 💨 6 mph H 46%30.09 inHg

7:00 PM

Sunny

86° 💧 None 💨 9 mph H 47%30.06 inHg

10:00 PM

Clear night

80° 💧 None 💨 5 mph H 56%30.09 inHg

Friday

1:00 AM

Clear night

76° 💧 None 💨 4 mph H 71%30.09 inHg

4:00 AM

Clear night

74° 💧 None 💨 3 mph H 82%30.09 inHg

7:00 AM

Sunny

72° 💧 None 💨 5 mph H 87%30.09 inHg

10:00 AM

Sunny

82° 💧 None 💨 6 mph H 64%30.12 inHg

1:00 PM

Sunny

89° 💧 None 💨 7 mph H 48%30.09 inHg

4:00 PM

Sunny

91° 💧 None 💨 6 mph H 42%30.00 inHg

7:00 PM

Sunny

85° 💧 None 💨 2 mph H 63%29.97 inHg

10:00 PM

Clear night

81° 💧 None 💨 1 mph H 78%30.00 inHg

Saturday

1:00 AM

Clear night

79° 💧 None 💨 1 mph H 84%30.00 inHg

4:00 AM

Clear night

77° 💧 None 💨 3 mph H 89%30.00 inHg

7:00 AM

Sunny

76° 💧 None 💨 4 mph H 89%29.97 inHg

10:00 AM

Sunny

84° 💧 None 💨 5 mph H 70%30.00 inHg

1:00 PM

Sunny

90° 💧 None 💨 3 mph H 55%29.97 inHg

4:00 PM

Mostly sunny

92° 💧 None 💨 4 mph H 49%29.91 inHg

7:00 PM

Sunny

87° 💧 None 💨 6 mph H 68%29.88 inHg

10:00 PM

Partly cloudy night

83° 💧 None 💨 5 mph H 76%29.91 inHg

Sunday

1:00 AM

Clear night

81° 💧 None 💨 5 mph H 84%29.91 inHg

4:00 AM

Mostly clear night

80° 💧 None 💨 6 mph H 89%29.91 inHg

7:00 AM

Mostly sunny

78° 💧 None 💨 4 mph H 90%29.91 inHg

1:00 PM

Mostly sunny

92° 💧 None 💨 5 mph H 50%29.91 inHg

7:00 PM

Partly cloudy

86° 💧 None 💨 2 mph H 68%29.85 inHg

Monday

1:00 AM

Clear night

81° 💧 None 💨 3 mph H 88%29.91 inHg

7:00 AM

Sunny

79° 💧 None 💨 5 mph H 93%29.91 inHg

1:00 PM

Mostly sunny

91° 💧 None 💨 7 mph H 53%29.91 inHg

7:00 PM

Partly cloudy

87° 💧 None 💨 3 mph H 70%29.83 inHg

Tuesday

1:00 AM

Clear night

80° 💧 None 💨 1 mph H 81%29.88 inHg

7:00 AM

Sunny

79° 💧 None 💨 4 mph H 90%29.91 inHg

1:00 PM

Mostly sunny

91° 💧 None 💨 6 mph H 52%29.88 inHg

7:00 PM

Mostly sunny

84° 💧 None 💨 4 mph H 75%29.85 inHg

Wednesday

1:00 AM

Clear night

80° 💧 None 💨 5 mph H 82%29.91 inHg

7:00 AM

Mostly cloudy

77° 💧 None 💨 6 mph H 90%29.97 inHg

1:00 PM

Mostly sunny

89° 💧 None 💨 6 mph H 55%30.00 inHg

7:00 PM

Sunny

86° 💧 None 💨 5 mph H 62%29.94 inHg

Thursday

1:00 AM

Clear night

80° 💧 None 💨 3 mph H 85%30.00 inHg

7:00 AM

Sunny

76° 💧 None 💨 7 mph H 84%30.03 inHg

1:00 PM

Sunny

91° 💧 None 💨 8 mph H 48%30.03 inHg

7:00 PM

Sunny

87° 💧 None 💨 7 mph H 50%29.97 inHg

Friday

1:00 AM

Clear night

79° 💧 None 💨 4 mph H 86%30.00 inHg

7:00 AM

Clear night

76° 💧 None 💨 7 mph H 90%30.03 inHg

1:00 PM

Mostly sunny

89° 💧 None 💨 8 mph H 52%30.03 inHg

7:00 PM

Mostly sunny

86° 💧 None 💨 8 mph H 55%29.97 inHg

Saturday

1:00 AM

Clear night

78° 💧 None 💨 5 mph H 69%30.00 inHg

7:00 AM

Clear night

74° 💧 None 💨 7 mph H 75%30.00 inHg

1:00 PM

Sunny

89° 💧 None 💨 8 mph H 43%29.97 inHg

7:00 PM

Sunny

86° 💧 None 💨 6 mph H 45%29.88 inHg

Sunday

1:00 AM

Clear night

78° 💧 None 💨 4 mph H 62%29.91 inHg

7:00 AM

Clear night

74° 💧 None 💨 5 mph H 71%29.88 inHg

1:00 PM

Mostly cloudy

91° 💧 None 💨 7 mph H 36%29.85 inHg

7:00 PM

Partly cloudy

87° 💧 None 💨 4 mph H 46%29.80 inHg

Monday

1:00 AM

Clear night

80° 💧 None 💨 3 mph H 72%29.83 inHg

7:00 AM

Clear night

76° 💧 None 💨 4 mph H 83%29.83 inHg

1:00 PM

Mostly sunny

90° 💧 None 💨 6 mph H 49%29.83 inHg

7:00 PM

Mostly sunny

86° 💧 None 💨 10 mph H 61%29.77 inHg

Tuesday

1:00 AM

Clear night

80° 💧 None 💨 4 mph H 79%29.83 inHg

7:00 AM

Clear night

76° 💧 None 💨 5 mph H 90%29.85 inHg

In Lake Arthur and, more broadly, across the state of Louisiana: Tonight, skies will remain mostly cloudy with temperatures staying mild to warm, ranging from 83 to 85 degrees. There is a strong likelihood of rain during the evening hours, with an expected accumulation of around 0.37 inches. Winds will be coming from the northwest at speeds up to 16 mph, with gusts reaching 23 mph, adding a breezy feel to the evening. Be prepared for potential showers if you're planning to be outdoors, and keep an eye on local updates for any changes in the forecast. Temperatures will gradually settle into the night, but the chance of rain and breezy conditions could continue into the early morning hours.

15-Day Weather Outlook for Lake Arthur

TomorrowTomorrow

Light thunderstorms 91°/75° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 93°/77° 💧 None 💨 11 mph

Thursday, Sep 17Thu Sep 17

Overcast 91°/77° 💧 0.154 in 💨 11 mph

Friday, Sep 18Fri Sep 18

Sunny 91°/72° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 92°/76° 💧 0.008 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 92°/78° 💧 0.012 in 💨 6 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 91°/79° 💧 0.104 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 91°/79° 💧 0.022 in 💨 6 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 89°/77° 💧 0.031 in 💨 6 mph

Thursday, Sep 24Thu Sep 24

Sunny 91°/76° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 89°/76° 💧 0.014 in 💨 8 mph

Saturday, Sep 26Sat Sep 26

Sunny 89°/74° 💧 None 💨 8 mph

Sunday, Sep 27Sun Sep 27

Mostly cloudy 91°/74° 💧 None 💨 7 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 90°/76° 💧 0.019 in 💨 10 mph

Tuesday, Sep 29Tue Sep 29

Sunny 80°/76° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Lake Arthur

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Lake Arthur

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 PM

PM2.5 Fine particles Good 1,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 2,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 51,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Lake Arthur

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 9,3Very high 😊Good

Tomorrow UV 9,3Very high 😊Good

Wednesday UV 9,1Very high 🙂Fair

Thursday UV 8,0Very high 😐Moderate

Friday UV 8,0Very high 😐Moderate

Saturday UV 8,0Very high —Unavailable

Sunday UV 8,0Very high —Unavailable

Hourly UV index today

7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Lake Arthur

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LAKE ARTHUR, LOUISIANA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

97/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 8:37 PM–5:35 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 55° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min74%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Lake Arthur were last refreshed today at 6:59 PM. The current forecast period extends through 16/09/2026 at 4:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.