Mermentau Weather Forecast 15 Days, Weather in Mermentau Today
Current weather conditions and 15 day weather forecast for Mermentau, Louisiana, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Mermentau
| 07 July 2026 Tuesday 34.3 ° C / 93.7°F  Sunny |
Feels Like : 39.4 ° C / 102.9°F Humidity : % 56 Pressure : 1015 mb Wind Speed : 10.1 kmph / 6.3 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Mermentau, LA, USA
Weather Forecast for next 15 Days for Mermentau including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Mermentau, Louisiana state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 06 July 2026 Monday | Sunny |
22.8 ° C (73°F) |
35.9 ° C (96.6°F) |
29.2 ° C (84.5°F) |
% 72 | 17% | 9.8 | Sunrise:06:14 AM Sunset: 08:15 PM |
Moonrise:Does not rise today Moonset: 12:20 PM Moon Phase ( Last Quarter ) |
|
| 07 July 2026 Tuesday | Sunny |
22.9 ° C (73.2°F) |
33.1 ° C (91.5°F) |
28 ° C (82.4°F) |
% 77 | 67% | 9.7 | Sunrise:06:15 AM Sunset: 08:15 PM |
Moonrise:12:20 AM Moonset: 01:16 PM Moon Phase ( Last Quarter ) |
|
| 08 July 2026 Wednesday | Sunny |
23.9 ° C (75°F) |
34 ° C (93.2°F) |
28 ° C (82.3°F) |
% 77 | 57% | 10.5 | Sunrise:06:15 AM Sunset: 08:15 PM |
Moonrise:12:49 AM Moonset: 02:16 PM Moon Phase ( Waning Crescent ) |
|
| 09 July 2026 Thursday | Sunny |
24.3 ° C (75.7°F) |
32.6 ° C (90.7°F) |
27.7 ° C (81.8°F) |
% 79 | 57% | 9.9 | Sunrise:06:16 AM Sunset: 08:15 PM |
Moonrise:01:21 AM Moonset: 03:19 PM Moon Phase ( Waning Crescent ) |
|
| 10 July 2026 Friday |  Patchy rain nearby |
24.5 ° C (76.1°F) |
32.6 ° C (90.7°F) |
27.8 ° C (82°F) |
% 77 | 72% | 10.4 | Sunrise:06:16 AM Sunset: 08:14 PM |
Moonrise:01:59 AM Moonset: 04:26 PM Moon Phase ( Waning Crescent ) |
|
| 11 July 2026 Saturday |  Partly Cloudy |
23.7 ° C (74.7°F) |
32.5 ° C (90.6°F) |
26.8 ° C (80.2°F) |
% 85 | 81% | 7 | Sunrise:06:17 AM Sunset: 08:14 PM |
Moonrise:02:46 AM Moonset: 05:36 PM Moon Phase ( Waning Crescent ) |
|
| 12 July 2026 Sunday | Patchy rain nearby |
23.2 ° C (73.8°F) |
28.2 ° C (82.8°F) |
25.5 ° C (77.9°F) |
% 90 | 80% | 7 | Sunrise:06:17 AM Sunset: 08:14 PM |
Moonrise:03:42 AM Moonset: 06:43 PM Moon Phase ( New Moon ) |
|
| 13 July 2026 Monday | Patchy rain nearby |
23.7 ° C (74.6°F) |
31.8 ° C (89.3°F) |
27 ° C (80.6°F) |
% 82 | 81% | 8 | Sunrise:06:18 AM Sunset: 08:14 PM |
Moonrise:04:48 AM Moonset: 07:45 PM Moon Phase ( New Moon ) |
|
| 14 July 2026 Tuesday | Sunny |
23.8 ° C (74.8°F) |
33.5 ° C (92.3°F) |
28.1 ° C (82.7°F) |
% 78 | 60% | 8 | Sunrise:06:18 AM Sunset: 08:13 PM |
Moonrise:06:01 AM Moonset: 08:39 PM Moon Phase ( New Moon ) |
|
| 15 July 2026 Wednesday | Sunny |
24.8 ° C (76.6°F) |
34.2 ° C (93.5°F) |
28.3 ° C (82.9°F) |
% 77 | 68% | 8 | Sunrise:06:19 AM Sunset: 08:13 PM |
Moonrise:07:16 AM Moonset: 09:24 PM Moon Phase ( New Moon ) |
|
| 16 July 2026 Thursday | Sunny |
25 ° C (77.1°F) |
33 ° C (91.3°F) |
27.7 ° C (81.9°F) |
% 79 | 46% | 8 | Sunrise:06:19 AM Sunset: 08:13 PM |
Moonrise:08:30 AM Moonset: 10:03 PM Moon Phase ( Waxing Crescent ) |
|
| 17 July 2026 Friday | Patchy rain nearby |
24.3 ° C (75.7°F) |
31.3 ° C (88.4°F) |
27.5 ° C (81.5°F) |
% 79 | 67% | 8 | Sunrise:06:20 AM Sunset: 08:12 PM |
Moonrise:09:40 AM Moonset: 10:37 PM Moon Phase ( Waxing Crescent ) |
|
| 18 July 2026 Saturday | Patchy rain nearby |
24.1 ° C (75.4°F) |
30.9 ° C (87.6°F) |
26.8 ° C (80.2°F) |
% 85 | 86% | 7 | Sunrise:06:20 AM Sunset: 08:12 PM |
Moonrise:10:47 AM Moonset: 11:09 PM Moon Phase ( Waxing Crescent ) |
|
| 19 July 2026 Sunday | Patchy rain nearby |
22.5 ° C (72.5°F) |
28 ° C (82.4°F) |
25 ° C (77.1°F) |
% 86 | 72% | 7 | Sunrise:06:21 AM Sunset: 08:11 PM |
Moonrise:11:51 AM Moonset: 11:40 PM Moon Phase ( First Quarter ) |
|
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