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Current weather in St. James is clear sky.

Where can I find the hourly weather forecast for St. James?

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

Is the weather forecast for St. James updated regularly?

Weather data for St. James is updated regularly with the latest available observations and forecasts.

Now · 10:40 AM

St. James Weather & Hourly Forecast

United States · Louisiana · 70086

83°F

Sunny

Feels like: 93°F

💧 Humidity 80% 🌡 Pressure 29.94 inHg 💨 Wind 3 mph 👁 Visibility 13.7 mi ☁ Clouds 9% ☀️ UV index 2.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for St. James

Today

11:00 AM

Sunny

86° 💧 0.005 in 💨 2 mph H 71%29.94 inHg

2:00 PM

Sunny

90° 💧 0.005 in 💨 3 mph H 60%29.88 inHg

5:00 PM

Light thunderstorms

87° 💧 0.023 in 💨 6 mph H 69%29.83 inHg

8:00 PM

Mostly clear night

81° 💧 0.000 in 💨 4 mph H 88%29.85 inHg

11:00 PM

Clear night

79° 💧 0.006 in 💨 4 mph H 92%29.91 inHg

Tomorrow

2:00 AM

Overcast night

79° 💧 0.003 in 💨 2 mph H 94%29.88 inHg

5:00 AM

Mostly cloudy night

77° 💧 0.000 in 💨 5 mph H 97%29.91 inHg

8:00 AM

Sunny

79° 💧 None 💨 5 mph H 92%29.94 inHg

11:00 AM

Light thunderstorms

88° 💧 0.041 in 💨 4 mph H 70%29.94 inHg

2:00 PM

Light thunderstorms

88° 💧 0.217 in 💨 4 mph H 72%29.91 inHg

5:00 PM

Light rain

83° 💧 0.023 in 💨 0 mph H 86%29.91 inHg

8:00 PM

Mostly cloudy night

79° 💧 None 💨 1 mph H 95%29.91 inHg

11:00 PM

Clear night

78° 💧 None 💨 1 mph H 96%29.97 inHg

Tuesday

2:00 AM

Fog at night

77° 💧 0.000 in 💨 0 mph H 100%29.97 inHg

5:00 AM

Fog at night

77° 💧 0.003 in 💨 3 mph H 99%30.00 inHg

8:00 AM

Mostly cloudy

78° 💧 0.003 in 💨 3 mph H 98%30.03 inHg

Today

11:00 AM

Sunny

86° 💧 0.001 in 💨 2 mph H 71%29.94 inHg

12:00 PM

Sunny

88° 💧 0.001 in 💨 2 mph H 66%29.94 inHg

1:00 PM

Sunny

89° 💧 0.003 in 💨 2 mph H 61%29.91 inHg

2:00 PM

Sunny

90° 💧 0.002 in 💨 3 mph H 60%29.88 inHg

3:00 PM

Sunny

91° 💧 0.002 in 💨 4 mph H 60%29.88 inHg

4:00 PM

Mostly sunny

91° 💧 0.001 in 💨 4 mph H 59%29.85 inHg

5:00 PM

Light thunderstorms

87° 💧 0.010 in 💨 6 mph H 69%29.83 inHg

6:00 PM

Light thunderstorms

84° 💧 0.012 in 💨 6 mph H 79%29.83 inHg

7:00 PM

Mostly sunny

83° 💧 0.002 in 💨 4 mph H 84%29.83 inHg

8:00 PM

Mostly clear night

81° 💧 0.000 in 💨 4 mph H 88%29.85 inHg

9:00 PM

Clear night

81° 💧 None 💨 4 mph H 89%29.88 inHg

10:00 PM

Clear night

80° 💧 None 💨 4 mph H 91%29.88 inHg

11:00 PM

Clear night

79° 💧 None 💨 4 mph H 92%29.91 inHg

Tomorrow

12:00 AM

Mostly clear night

79° 💧 0.000 in 💨 2 mph H 93%29.91 inHg

1:00 AM

Light rain

79° 💧 0.006 in 💨 4 mph H 93%29.88 inHg

2:00 AM

Overcast night

79° 💧 0.003 in 💨 2 mph H 94%29.88 inHg

3:00 AM

Overcast night

78° 💧 None 💨 2 mph H 94%29.88 inHg

4:00 AM

Overcast night

78° 💧 None 💨 5 mph H 96%29.91 inHg

5:00 AM

Mostly cloudy night

77° 💧 0.000 in 💨 5 mph H 97%29.91 inHg

6:00 AM

Clear night

77° 💧 None 💨 5 mph H 97%29.91 inHg

7:00 AM

Sunny

77° 💧 None 💨 5 mph H 97%29.91 inHg

8:00 AM

Sunny

79° 💧 None 💨 5 mph H 92%29.94 inHg

9:00 AM

Sunny

82° 💧 None 💨 5 mph H 87%29.94 inHg

10:00 AM

Sunny

85° 💧 None 💨 4 mph H 78%29.94 inHg

11:00 AM

Light thunderstorms

88° 💧 0.006 in 💨 4 mph H 70%29.94 inHg

12:00 PM

Light thunderstorms

89° 💧 0.014 in 💨 3 mph H 67%29.97 inHg

1:00 PM

Light thunderstorms

90° 💧 0.021 in 💨 2 mph H 67%29.94 inHg

2:00 PM

Light thunderstorms

88° 💧 0.041 in 💨 4 mph H 72%29.91 inHg

3:00 PM

Thunderstorms

84° 💧 0.104 in 💨 3 mph H 88%29.91 inHg

4:00 PM

Light thunderstorms

81° 💧 0.072 in 💨 1 mph H 92%29.91 inHg

5:00 PM

Light rain

83° 💧 0.014 in 💨 0 mph H 86%29.91 inHg

6:00 PM

Light rain

81° 💧 0.004 in 💨 2 mph H 91%29.91 inHg

7:00 PM

Light rain

80° 💧 0.004 in 💨 1 mph H 94%29.91 inHg

8:00 PM

Mostly cloudy night

79° 💧 None 💨 1 mph H 95%29.91 inHg

9:00 PM

Mostly cloudy night

79° 💧 None 💨 0 mph H 94%29.94 inHg

10:00 PM

Mostly clear night

79° 💧 None 💨 0 mph H 95%29.97 inHg

11:00 PM

Clear night

78° 💧 None 💨 1 mph H 96%29.97 inHg

Tuesday

12:00 AM

Mostly clear night

77° 💧 None 💨 1 mph H 98%29.97 inHg

1:00 AM

Fog at night

77° 💧 None 💨 1 mph H 100%29.97 inHg

2:00 AM

Fog at night

77° 💧 None 💨 0 mph H 100%29.97 inHg

3:00 AM

Fog at night

77° 💧 None 💨 2 mph H 100%29.97 inHg

4:00 AM

Fog at night

77° 💧 0.000 in 💨 3 mph H 99%29.97 inHg

5:00 AM

Fog at night

77° 💧 0.003 in 💨 3 mph H 99%30.00 inHg

6:00 AM

Fog at night

77° 💧 None 💨 2 mph H 99%30.00 inHg

7:00 AM

Fog

77° 💧 None 💨 3 mph H 100%30.00 inHg

8:00 AM

Mostly cloudy

78° 💧 None 💨 3 mph H 98%30.03 inHg

9:00 AM

Mist

80° 💧 None 💨 4 mph H 92%30.03 inHg

10:00 AM

Partly cloudy

83° 💧 0.003 in 💨 6 mph H 84%30.03 inHg

11:00 AM

Light rain

85° 💧 0.016 in 💨 8 mph H 81%30.06 inHg

12:00 PM

Light rain

86° 💧 0.010 in 💨 9 mph H 77%30.06 inHg

1:00 PM

Light thunderstorms

86° 💧 0.028 in 💨 8 mph H 75%30.06 inHg

2:00 PM

Light thunderstorms

82° 💧 0.060 in 💨 7 mph H 87%30.03 inHg

3:00 PM

Light rain

83° 💧 0.007 in 💨 3 mph H 82%30.03 inHg

4:00 PM

Light rain

85° 💧 0.005 in 💨 6 mph H 78%30.00 inHg

5:00 PM

Light rain

84° 💧 0.005 in 💨 7 mph H 78%30.00 inHg

6:00 PM

Partly cloudy

83° 💧 0.002 in 💨 6 mph H 79%30.00 inHg

7:00 PM

Light rain

80° 💧 0.016 in 💨 6 mph H 88%30.03 inHg

Wednesday

4:00 AM

Mostly clear night

77° 💧 None 💨 1 mph H 93%30.06 inHg

7:00 AM

Mostly cloudy

77° 💧 None 💨 4 mph H 96%30.09 inHg

10:00 AM

Light rain

82° 💧 None 💨 8 mph H 84%30.12 inHg

1:00 PM

Light rain

86° 💧 None 💨 8 mph H 75%30.09 inHg

4:00 PM

Light rain

78° 💧 None 💨 5 mph H 96%30.06 inHg

7:00 PM

Overcast

77° 💧 None 💨 2 mph H 97%30.00 inHg

10:00 PM

Mostly cloudy night

76° 💧 None 💨 2 mph H 98%30.03 inHg

Thursday

1:00 AM

Partly cloudy night

76° 💧 None 💨 1 mph H 97%30.03 inHg

4:00 AM

Overcast night

75° 💧 None 💨 1 mph H 100%30.00 inHg

7:00 AM

Moderate rain

74° 💧 None 💨 2 mph H 100%30.00 inHg

10:00 AM

Light rain

80° 💧 None 💨 0 mph H 87%30.03 inHg

1:00 PM

Light rain

87° 💧 None 💨 1 mph H 69%30.00 inHg

4:00 PM

Light rain

80° 💧 None 💨 2 mph H 91%29.91 inHg

7:00 PM

Overcast

79° 💧 None 💨 2 mph H 95%29.91 inHg

10:00 PM

Partly cloudy night

77° 💧 None 💨 2 mph H 97%29.91 inHg

Friday

1:00 AM

Mostly clear night

76° 💧 None 💨 3 mph H 98%29.91 inHg

4:00 AM

Mostly clear night

76° 💧 None 💨 3 mph H 98%29.88 inHg

7:00 AM

Mostly cloudy

75° 💧 None 💨 2 mph H 99%29.91 inHg

10:00 AM

Overcast

80° 💧 None 💨 3 mph H 88%29.94 inHg

1:00 PM

Mostly cloudy

88° 💧 None 💨 2 mph H 71%29.88 inHg

4:00 PM

Light rain

87° 💧 None 💨 4 mph H 71%29.83 inHg

7:00 PM

Partly cloudy

81° 💧 None 💨 1 mph H 90%29.83 inHg

10:00 PM

Overcast night

79° 💧 None 💨 4 mph H 95%29.88 inHg

Saturday

1:00 AM

Mostly clear night

77° 💧 None 💨 4 mph H 95%29.88 inHg

7:00 AM

Mostly sunny

77° 💧 None 💨 4 mph H 95%29.91 inHg

1:00 PM

Partly cloudy

75° 💧 None 💨 4 mph H 98%29.94 inHg

7:00 PM

Light rain

87° 💧 None 💨 2 mph H 74%29.97 inHg

Sunday

1:00 AM

Overcast night

79° 💧 None 💨 3 mph H 94%29.91 inHg

7:00 AM

Overcast

78° 💧 None 💨 3 mph H 95%29.97 inHg

1:00 PM

Sunny

76° 💧 None 💨 3 mph H 97%30.00 inHg

7:00 PM

Light thunderstorms

88° 💧 None 💨 8 mph H 71%30.03 inHg

Monday

1:00 AM

Mostly clear night

80° 💧 None 💨 4 mph H 92%30.00 inHg

7:00 AM

Mostly sunny

78° 💧 None 💨 4 mph H 95%30.03 inHg

1:00 PM

Sunny

77° 💧 None 💨 4 mph H 97%30.06 inHg

7:00 PM

Light thunderstorms

87° 💧 None 💨 7 mph H 73%30.06 inHg

Tuesday

1:00 AM

Overcast night

80° 💧 None 💨 2 mph H 96%30.00 inHg

7:00 AM

Overcast

78° 💧 None 💨 0 mph H 97%30.03 inHg

1:00 PM

Overcast

76° 💧 None 💨 2 mph H 100%30.06 inHg

7:00 PM

Light rain

90° 💧 None 💨 1 mph H 68%30.06 inHg

Wednesday

1:00 AM

Mostly cloudy night

80° 💧 None 💨 1 mph H 92%30.03 inHg

7:00 AM

Overcast

76° 💧 None 💨 2 mph H 100%30.06 inHg

1:00 PM

Overcast

77° 💧 None 💨 4 mph H 99%30.06 inHg

7:00 PM

Mostly sunny

89° 💧 None 💨 3 mph H 64%30.03 inHg

Thursday

1:00 AM

Mostly clear night

85° 💧 None 💨 0 mph H 85%29.97 inHg

7:00 AM

Partly cloudy

78° 💧 None 💨 3 mph H 94%30.00 inHg

1:00 PM

Sunny

76° 💧 None 💨 3 mph H 99%30.00 inHg

7:00 PM

Mostly sunny

90° 💧 None 💨 3 mph H 68%29.97 inHg

Friday

1:00 AM

Mostly clear night

80° 💧 None 💨 3 mph H 92%29.91 inHg

7:00 AM

Sunny

78° 💧 None 💨 1 mph H 95%29.94 inHg

1:00 PM

Mostly cloudy

75° 💧 None 💨 2 mph H 99%29.94 inHg

7:00 PM

Partly cloudy

89° 💧 None 💨 3 mph H 66%29.94 inHg

Saturday

1:00 AM

Mostly clear night

81° 💧 None 💨 3 mph H 89%29.88 inHg

7:00 AM

Partly cloudy

78° 💧 None 💨 3 mph H 94%29.94 inHg

1:00 PM

Mostly cloudy

74° 💧 None 💨 0 mph H 97%29.94 inHg

7:00 PM

Sunny

90° 💧 None 💨 2 mph H 55%29.97 inHg

Sunday

1:00 AM

Mostly clear night

83° 💧 None 💨 5 mph H 82%29.91 inHg

7:00 AM

Sunny

78° 💧 None 💨 2 mph H 96%30.00 inHg

1:00 PM

Partly cloudy

76° 💧 None 💨 4 mph H 98%30.00 inHg

7:00 PM

Mostly sunny

86° 💧 None 💨 6 mph H 69%30.03 inHg

Monday

1:00 AM

Mostly clear night

81° 💧 None 💨 3 mph H 94%30.00 inHg

In St. James and, more broadly, across the state of Louisiana: The afternoon will feature mostly sunny skies with just a few clouds drifting by. Temperatures will stay comfortably hot, ranging from the mid-80s to around 80 degrees Fahrenheit. Light southwest winds, with speeds up to 7 mph and gusts reaching 13 mph, will provide a gentle breeze. No significant rain is expected throughout the rest of the day, so outdoor plans should be straightforward. As the day progresses, the weather will remain warm and dry, making it ideal for outdoor activities. The evening is likely to stay pleasant with clear or partly cloudy skies and mild wind conditions. Overall, it looks to be a warm, mostly sunny day with comfortable breezes.

15-Day Weather Outlook for St. James

TomorrowTomorrow

Light thunderstorms 90°/77° 💧 None 💨 5 mph

Tuesday, Sep 8Tue Sep 8

Light thunderstorms 86°/77° 💧 None 💨 9 mph

Wednesday, Sep 9Wed Sep 9

Light rain 86°/77° 💧 1.241 in 💨 8 mph

Thursday, Sep 10Thu Sep 10

Moderate rain 87°/74° 💧 0.370 in 💨 2 mph

Friday, Sep 11Fri Sep 11

Light rain 88°/75° 💧 0.107 in 💨 4 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 81°/75° 💧 0.061 in 💨 4 mph

Sunday, Sep 13Sun Sep 13

Light rain 87°/76° 💧 0.149 in 💨 3 mph

Monday, Sep 14Mon Sep 14

Light thunderstorms 88°/77° 💧 0.254 in 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Light thunderstorms 87°/76° 💧 0.274 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Light rain 90°/76° 💧 0.344 in 💨 4 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 89°/76° 💧 0.007 in 💨 3 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 90°/75° 💧 0.047 in 💨 3 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 89°/74° 💧 0.043 in 💨 3 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 90°/76° 💧 0.002 in 💨 5 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 86°/81° 💧 0.157 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. James

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. James

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 11:00 AM

PM2.5 Fine particles Good 0,9µg/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 1,3µg/m³

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

O₃ Ozone Good 49,9µg/m³

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

NO₂ Nitrogen dioxide Good 0,3µg/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 St. James

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 10,1Very high 😊Good

Tomorrow UV 9,7Very high 🙂Fair

Tuesday UV 9,2Very high 🙂Fair

Wednesday UV 8,8Very high 🙂Fair

Thursday UV 8,0Very high 😊Good

Friday UV 8,0Very high —Unavailable

Saturday UV 7,0High —Unavailable

Hourly UV index today

11:00 AMUV 7,0 12:00 PMUV 9,2 1:00 PMUV 10,1 2:00 PMUV 9,1 3:00 PMUV 5,5 4:00 PMUV 1,9 5:00 PMUV 0,9 6:00 PMUV 0,4 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. High humidity can make it feel hotter.

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 St. James

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ST. JAMES, LOUISIANA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

93/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:41 PM–5:22 AM

☁ Cloud cover 5% Real hourly forecast for the best viewing hour.

☾ Moonlight 23% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 17° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min37%

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 St. James were last refreshed today at 9:51 AM. The current forecast period extends through 08/09/2026 at 8:00 AM. 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.