Lake Arthur, LA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Arthur, LA in one place.
Mostly sunny, with a high near 89. Southwest wind around 5 mph.
Local Weather Overview
This forecast page for Lake Arthur, LA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 30, 2026 4:54 PM CDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for Lake Arthur, LA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 4:54 PM CDT
- Forecast office
- LCH
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Arthur
This Afternoon looks like the warmest upcoming period in Lake Arthur at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph NE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 4:54 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LCH
- Radar station
- KLCH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 75. Heat index values as high as 97. South wind 0 to 5 mph.
Patchy fog between 7am and 8am. Mostly sunny, with a high near 88. South wind 0 to 5 mph.
Partly cloudy, with a low around 75. South wind 0 to 5 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Southwest wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North wind 0 to 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. East wind 0 to 5 mph. Chance of precipitation is 40%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 84. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 30
|
Mostly Sunny
|
89°F |
5 mph
SW
|
|
Tonight
May 30
|
Mostly Cloudy
|
75°F |
0 to 5 mph
S
|
|
Sunday
May 31
|
Patchy Fog then Mostly Sunny
|
88°F |
0 to 5 mph
S
|
|
Sunday Night
May 31
|
Partly Cloudy
|
75°F |
0 to 5 mph
S
|
|
Monday
Jun 1
|
Mostly Sunny then Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
S
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
0 to 5 mph
SW
|
|
Tuesday
Jun 2
|
Mostly Sunny then Chance Showers And Thunderstorms
|
88°F |
0 to 5 mph
N
|
|
Tuesday Night
Jun 2
|
Chance Showers And Thunderstorms
|
73°F |
0 to 5 mph
E
|
|
Wednesday
Jun 3
|
Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
NE
|
|
Wednesday Night
Jun 3
|
Chance Showers And Thunderstorms
|
71°F |
5 mph
E
|
|
Thursday
Jun 4
|
Chance Showers And Thunderstorms
|
84°F |
5 to 10 mph
E
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
5 to 10 mph
SE
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
84°F |
5 to 10 mph
SE
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
74°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Arthur.