Lake Arthur, LA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Arthur, LA in one place.
Mostly cloudy, with a high near 81. Southwest wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
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: Jul 14, 2026 6:46 PM CDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Lake Arthur, LA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 6:46 PM CDT
- Forecast office
- LCH
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Arthur
Sunday looks like the warmest upcoming period in Lake Arthur at 93 degrees F.
Tonight is the coolest period ahead with temperatures near 74 degrees F.
The strongest winds are forecast for Sunday Night at about 5 to 10 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 6:46 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 74. Southwest wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between noon and 5pm. Partly sunny, with a high near 87. Southeast wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly cloudy, with a low around 75. South wind 0 to 5 mph.
Mostly sunny, with a high near 91. Southeast wind 0 to 5 mph.
Partly cloudy, with a low around 77. South wind 0 to 5 mph.
Mostly sunny, with a high near 92. South wind 0 to 5 mph.
Partly cloudy, with a low around 76. Southwest wind 0 to 5 mph.
Mostly sunny, with a high near 92. West wind 0 to 5 mph.
Mostly clear, with a low around 77.
Sunny, with a high near 93.
Mostly clear, with a low around 77.
Sunny, with a high near 93.
Mostly clear, with a low around 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 14
|
Mostly Cloudy
|
81°F |
5 mph
SW
|
|
Tonight
Jul 14
|
Mostly Cloudy
|
74°F |
0 to 5 mph
SW
|
|
Wednesday
Jul 15
|
Partly Sunny then Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
SE
|
|
Wednesday Night
Jul 15
|
Mostly Cloudy
|
75°F |
0 to 5 mph
S
|
|
Thursday
Jul 16
|
Mostly Sunny
|
91°F |
0 to 5 mph
SE
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
77°F |
0 to 5 mph
S
|
|
Friday
Jul 17
|
Mostly Sunny
|
92°F |
0 to 5 mph
S
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
76°F |
0 to 5 mph
SW
|
|
Saturday
Jul 18
|
Mostly Sunny
|
92°F |
0 to 5 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
77°F |
5 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
93°F |
5 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
77°F |
5 to 10 mph
SW
|
|
Monday
Jul 20
|
Sunny
|
93°F |
5 to 10 mph
W
|
|
Monday Night
Jul 20
|
Mostly Clear
|
78°F |
5 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Arthur.