Skip to content

Checked

St. James, LA Weather

Tonight: Mostly Cloudy, low 68°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

St. James, LA current weather

78°F

Mostly Cloudy

Forecast for this hour. No recent report from a nearby station.

H -- / L 68°

No recent station report. NWS hourly forecast updated 10/30/2026, 12:02 PM PT

Hourly forecast

NWS, updated 10/30/2026, 12:02 PM PT

  1. Now78°
  2. 7 PM75°
  3. 8 PM73°
  4. 9 PM70°
  5. 10 PM70°
  6. 11 PM69°
  7. 12 AM69°Sat
  8. 1 AM69°
  9. 2 AM68°
  10. 3 AM68°
  11. 4 AM68°
  12. 5 AM68°
  13. 6 AM68°
  14. 7 AM68°
  15. 8 AM68°
  16. 9 AM71°
  17. 10 AM75°
  18. 11 AM78°
  19. 12 PM79°
  20. 1 PM81°
  21. 2 PM81°11%
  22. 3 PM80°13%
  23. 4 PM81°21%
  24. 5 PM79°21%
  25. 6 PM78°21%
  26. 7 PM75°22%
  27. 8 PM72°21%
  28. 9 PM72°20%
  29. 10 PM72°13%
  30. 11 PM71°12%
  31. 12 AM71°10%Sun
  32. 1 AM71°11%
  33. 1 AM70°10%
  34. 2 AM70°
  35. 3 AM70°
  36. 4 AM70°12%
  37. 5 AM70°10%
  38. 6 AM70°21%
  39. 7 AM70°21%
  40. 8 AM73°21%
  41. 9 AM76°32%
  42. 10 AM77°32%
  43. 11 AM79°32%
  44. 12 PM80°54%
  45. 1 PM80°54%
  46. 2 PM79°54%
  47. 3 PM79°54%
  48. 4 PM77°54%

10-day forecast

Tap a day for details

  • Today10/30Low 68°High

    Tonight: Mostly cloudy, with a low around 68. East wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.

    Mostly Cloudy
  • Sat10/3122% chance of precipitationLow 70°High 83°

    Saturday: A slight chance of showers and thunderstorms after 4pm. Partly sunny. High near 83, with temperatures falling to around 79 in the afternoon. East wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: A slight chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 70. East wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.

    Partly Sunny then Slight Chance Showers And Thunderstorms
  • Sun11/154% chance of precipitationLow 68°High 81°

    Sunday: A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Northeast wind around 5 mph. Chance of precipitation is 50%.

    Sunday Night: Mostly cloudy, with a low around 68. East wind around 5 mph.

    Chance Rain Showers
  • Mon11/217% chance of precipitationLow 67°High 81°

    Monday: A slight chance of rain showers after noon. Partly sunny, with a high near 81. East wind 5 to 10 mph. Chance of precipitation is 20%.

    Monday Night: Mostly cloudy, with a low around 67. East wind around 5 mph.

    Partly Sunny then Slight Chance Rain Showers
  • Tue11/355% chance of precipitationLow 64°High 81°

    Tuesday: A chance of rain showers before noon, then showers and thunderstorms likely. Partly sunny, with a high near 81. Southeast wind 5 to 10 mph.

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 0 to 5 mph.

    Showers And Thunderstorms Likely
  • Wed11/429% chance of precipitationLow 56°High 77°

    Wednesday: A chance of rain showers. Mostly sunny, with a high near 77. West wind 0 to 5 mph.

    Wednesday Night: Mostly clear, with a low around 56. West wind around 0 mph.

    Chance Rain Showers
  • Thu11/5Low 54°High 75°

    Thursday: Sunny, with a high near 75. Northwest wind 0 to 5 mph.

    Thursday Night: Mostly clear, with a low around 54. Northwest wind around 0 mph.

    Sunny
  • Fri11/6Low High 76°

    Friday: Sunny, with a high near 76. North wind 0 to 5 mph.

    Sunny
  • Sat11/7Model blendLow 55°High 78°

    Saturday: Partly cloudy. High near 78°. Low that night near 55°. About 0.03 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend17% chance of precipitationLow 53°High 78°

    Sunday: Partly cloudy, slight chance of rain. High near 78°. Low that night near 53°. About 0.08 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 30.011, -90.852 from the NWS LIX office, updated 10/30/2026, 12:02 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KREG (Gonzales/Louisiana Rgnl, 13 mi), model run 10/30/2026, 3:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now78°Mostly Cloudy2%5 mph
  2. 7 PM75°Mostly Cloudy1%5 mph
  3. 8 PM73°Mostly Cloudy1%5 mph
  4. 9 PM70°Cloudy1%5 mph
  5. 10 PM70°Mostly Cloudy1%5 mph
  6. 11 PM69°Mostly Cloudy1%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

Will it rain in St. James, LA in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for St. James, LA?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 7 to Nov 8) come from the NOAA National Blend of Models, with highs near 78°F. Model guidance this far out often changes.
What time is sunrise and sunset in St. James, LA today?
Sunrise is about 7:16 AM CDT and sunset is about 6:17 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in St. James, LA?
At Donaldsonville 4 SW, the 1991 to 2020 normal high in October is 80°F and the normal low is 59°F.

Nearby hazards

Louisiana hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Thibodaux)
53ModeratePM2.5
AQI forecast tomorrow (Thibodaux)
41GoodOzone

UV index guide · Air quality

Drought

By county

St. James Parish, week of 10/27/2026

100% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:16 AM
Sunset
6:17 PM
Daylight
11 hr 2 min
Moon
Waning Gibbous 76% lit
First light (civil dawn)
6:51 AM
Last light (civil dusk)
6:42 PM
Moonrise
10:18 PM
Moonset
12:10 PM

Normal October weather

Climate

Normal October high 80°, low 59°, precipitation 4.65 in for the month. 1991 to 2020 normals at Donaldsonville 4 SW, 11 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

Forecasts, observations and alerts come from the National Weather Service (api.weather.gov). Data can be delayed by minutes to hours, and an observation station may be miles from the place named on this page. This site is not affiliated with NOAA or the National Weather Service.

DatenUS is a private website and is not affiliated with or endorsed by any government agency. We republish public data from the sources listed on this page. Data can be incomplete, delayed or wrong. Always check the original source before you make a decision.

Our servers read this data automatically from government sources. Errors can come from the source itself or from the way we read, process or display it, and we do not guarantee that it is accurate, complete or current. Verify anything important with the official source.

Report an errorRead the full disclaimer