Weather in Lake Arthur, LA
Updated 2026-09-26 11:00 local time · ZIP codes 70549
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
85°11% rain87°10% rain88°10% rain88°10% rain89°10% rain89°10% rain88°10% rain
85°8% rain80°14% rain
78°16% rain76°18% rain76°17% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 18%).
It feels like 86°F with winds near 6 mph.
78°F, 16% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 85°F, wind 6 mph, rain chance up to 18%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Lake Arthur
Louisiana is warm, humid and rainy, with hot summers, mild winters, frequent thunderstorms and exposure to tropical storms and hurricanes near the Gulf Coast.
Lake Arthur is part of the South weather region. The forecast point is near 30.08°N latitude and 92.67°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Lake Arthur weather today
Overcast and 85°F in Lake Arthur, LA. Today's high is 89°F with a 36% rain chance. Winds are around 6 mph with gusts near 15 mph. Relative humidity is 49%, pressure is 30.03 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Lake Arthur
Sunrise is at 07:01 AM and sunset is at 07:02 PM. Tomorrow's forecast calls for Sunny with a high near 92°F and a low near 71°F. The maximum rain chance is 7%.