Current Weather Forecast for Mermentau

LA 70556  |   5:37pm

Weather Conditions

95°

Feels Like 105°

Sunny

76° 96° HEAT ADVISORY

HEAT ADVISORY

2

UV Index

Good

Air Quality

SW 8 mph

Wind

0 in

rain

Tonight

Tue 7/28

76°

Lowest Temperature

9%

Clear skies. Low 76F. Winds WSW at 5 to 10 mph.

Tomorrow

Wed 7/29

95°

Highest Temperature

9%

Partly cloudy skies. Hot and humid. High near 95F. Winds W at 5 to 10 mph.

Tomorrow night

Wed 7/29

78°

Lowest Temperature

15%

A few clouds from time to time. Low 78F. Winds WSW at 5 to 10 mph.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Mermentau

Hourly Weather Forecast & Temperature

6PM

1%

94°

Feels Like 104°

HEAT ADVISORY

Sunny

WSW 8 mph

Wind

1010 mb

Pressure

51%

Humidity

1

UV Index

10mi

Visibility

14%

Cloud Cover

7PM

1%

91°

Feels Like 102°

HEAT ADVISORY

Sunny

SW 8 mph

Wind

1010 mb

Pressure

57%

Humidity

0

UV Index

10mi

Visibility

12%

Cloud Cover

8PM

2%

89°

Feels Like 98°

HEAT ADVISORY

Sunny

SW 7 mph

Wind

1011 mb

Pressure

62%

Humidity

0

UV Index

10mi

Visibility

6%

Cloud Cover

9PM

2%

84°

Feels Like 93°

Clear

SW 6 mph

Wind

1011 mb

Pressure

74%

Humidity

0

UV Index

10mi

Visibility

1%

Cloud Cover

10PM

2%

83°

Feels Like 91°

Clear

SW 6 mph

Wind

1011 mb

Pressure

79%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

11PM

2%

82°

Feels Like 90°

Clear

WSW 5 mph

Wind

1011 mb

Pressure

84%

Humidity

0

UV Index

10mi

Visibility

8%

Cloud Cover

12AM

4%

81°

Feels Like 89°

Clear

WSW 4 mph

Wind

1012 mb

Pressure

86%

Humidity

0

UV Index

10mi

Visibility

19%

Cloud Cover

1AM

7%

80°

Feels Like 88°

Clear

WSW 4 mph

Wind

1011 mb

Pressure

89%

Humidity

0

UV Index

10mi

Visibility

10%

Cloud Cover

2AM

8%

79°

Feels Like 86°

Clear

W 3 mph

Wind

1011 mb

Pressure

91%

Humidity

0

UV Index

10mi

Visibility

11%

Cloud Cover

3AM

8%

78°

Feels Like 85°

Clear

W 3 mph

Wind

1011 mb

Pressure

94%

Humidity

0

UV Index

9mi

Visibility

13%

Cloud Cover

4AM

9%

78°

Feels Like 84°

Clear

W 3 mph

Wind

1012 mb

Pressure

94%

Humidity

0

UV Index

9mi

Visibility

14%

Cloud Cover

5AM

9%

77°

Feels Like 84°

Clear

W 3 mph

Wind

1012 mb

Pressure

96%

Humidity

0

UV Index

8mi

Visibility

17%

Cloud Cover

Tue 7/28

Tue

9%

76°

96°

Clear. Lows overnight in the mid 70s.

104°

Feels Like

WSW 8 mph

Wind

79%

Humidity

0

UV Index

6:26 AM

Sunrise

8:06 PM

Sunset

Wed 7/29

Wed

9%

76°

95°

Partly cloudy. Highs in the mid 90s and lows in the upper 70s.

103°

Feels Like

W 8 mph

Wind

67%

Humidity

10

UV Index

6:27 AM

Sunrise

8:06 PM

Sunset

Thu 7/30

Thu

10%

78°

94°

Mix of sun and clouds. Highs in the mid 90s and lows in the upper 70s.

104°

Feels Like

W 8 mph

Wind

68%

Humidity

11

UV Index

6:28 AM

Sunrise

8:05 PM

Sunset

Fri 7/31

Fri

9%

78°

94°

Mix of sun and clouds. Highs in the mid 90s and lows in the upper 70s.

104°

Feels Like

WSW 10 mph

Wind

67%

Humidity

11

UV Index

6:28 AM

Sunrise

8:04 PM

Sunset

Sat 8/1

Sat

17%

79°

94°

Partly cloudy. Highs in the mid 90s and lows in the mid 70s.

105°

Feels Like

WSW 12 mph

Wind

67%

Humidity

11

UV Index

6:29 AM

Sunrise

8:03 PM

Sunset

Sun 8/2

Sun

24%

76°

92°

Partly cloudy. Highs in the low 90s and lows in the mid 70s.

99°

Feels Like

W 8 mph

Wind

70%

Humidity

11

UV Index

6:30 AM

Sunrise

8:03 PM

Sunset

Mon 8/3

Mon

31%

75°

93°

Partly cloudy with a stray thunderstorm. Highs in the low 90s and lows in the mid 70s.

100°

Feels Like

SW 8 mph

Wind

67%

Humidity

11

UV Index

6:30 AM

Sunrise

8:02 PM

Sunset

Tue 8/4

Tue

50%

76°

92°

Scattered thunderstorms. Highs in the low 90s and lows in the mid 70s.

100°

Feels Like

SSW 8 mph

Wind

70%

Humidity

11

UV Index

6:31 AM

Sunrise

8:01 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Looking for homes in this area?

• 402 Fruge St, Mermentau, LA 70556

Sponsored by Redfin. Housing data supplied by Redfin independent of FOX Weather.

Latest Stories from Louisiana

The top 10 worst states for battling mosquitos thanks to heat and humidity

Outside ranked the 10 worst states for mosquitoes in 2026. Here's where the biting pests thrive most, and the climate and landscapes that help fuel their populations.

Bryan Norcross: The Atlantic goes quiet after Bertha fades away

The remnants of former Tropical Storm Bertha have moved into northern Mexico. It's now a weak disturbance over the mountains.

Battered and bruised Bertha weakens as all storm watches and warnings are discontinued

Tropical Storm Bertha is back in the northern Gulf and racing toward Texas, where it is expected to make a second landfall Thursday afternoon after striking southeast Louisiana on Wednesday.

Bryan Norcross: Disorganized Bertha charging toward Texas on its last day

Bertha is stretched out and ugly, but the National Hurricane Center is still classifying it as a tropical storm.

Load More Stories