Grand Isle Seaplane Base Weather Forecast 15 Days, Weather in KGNI Today
Current weather conditions and 15 day weather forecast for Grand Isle Seaplane Base, 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 Grand Isle Seaplane Base
| 05 December 2025 Friday 10.6 ° C / 51.1°F  Overcast |
Feels Like : 7.9 ° C / 46.2°F Humidity : % 87 Pressure : 1019 mb Wind Speed : 22.7 kmph / 14.1 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Grand Isle Seaplane Base, LA, USA
Weather Forecast for next 15 Days for Grand Isle Seaplane Base 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 Grand Isle Seaplane Base, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Heavy rain |
12.3 ° C (54.1°F) |
14.8 ° C (58.6°F) |
14 ° C (57.1°F) |
% 94 | 86% | 0.1 | Sunrise:06:40 AM Sunset: 05:01 PM |
Moonrise:05:44 PM Moonset: 07:35 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Heavy rain |
14.3 ° C (57.7°F) |
16.5 ° C (61.7°F) |
15.8 ° C (60.5°F) |
% 94 | 89% | 0.1 | Sunrise:06:40 AM Sunset: 05:02 PM |
Moonrise:06:54 PM Moonset: 08:41 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Moderate rain |
18.3 ° C (64.9°F) |
19.9 ° C (67.8°F) |
19.1 ° C (66.5°F) |
% 95 | 88% | 0.6 | Sunrise:06:41 AM Sunset: 05:02 PM |
Moonrise:08:05 PM Moonset: 09:37 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Partly Cloudy |
11.9 ° C (53.3°F) |
15.8 ° C (60.5°F) |
15.4 ° C (59.6°F) |
% 76 | 0% | 0.8 | Sunrise:06:42 AM Sunset: 05:02 PM |
Moonrise:09:14 PM Moonset: 10:23 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Sunny |
10.5 ° C (50.9°F) |
16.7 ° C (62.1°F) |
13.5 ° C (56.3°F) |
% 72 | 0% | 0 | Sunrise:06:43 AM Sunset: 05:02 PM |
Moonrise:10:17 PM Moonset: 11:01 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Partly Cloudy |
17.1 ° C (62.8°F) |
20.8 ° C (69.4°F) |
19.3 ° C (66.8°F) |
% 79 | 0% | 5 | Sunrise:06:43 AM Sunset: 05:02 PM |
Moonrise:11:17 PM Moonset: 11:34 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Patchy rain nearby |
20.8 ° C (69.4°F) |
22.7 ° C (72.8°F) |
21.5 ° C (70.7°F) |
% 90 | 89% | 5 | Sunrise:06:44 AM Sunset: 05:03 PM |
Moonrise:No moonrise Moonset: 12:03 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Patchy rain nearby |
16.8 ° C (62.2°F) |
19.3 ° C (66.8°F) |
18.7 ° C (65.6°F) |
% 83 | 84% | 4 | Sunrise:06:45 AM Sunset: 05:03 PM |
Moonrise:12:13 AM Moonset: 12:30 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Partly Cloudy |
16.5 ° C (61.7°F) |
18.7 ° C (65.6°F) |
17.5 ° C (63.5°F) |
% 73 | 0% | 5 | Sunrise:06:45 AM Sunset: 05:03 PM |
Moonrise:01:08 AM Moonset: 12:57 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Patchy rain nearby |
18.3 ° C (65°F) |
19.8 ° C (67.7°F) |
19.3 ° C (66.7°F) |
% 90 | 82% | 4 | Sunrise:06:46 AM Sunset: 05:03 PM |
Moonrise:02:01 AM Moonset: 01:25 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Moderate rain |
18.7 ° C (65.7°F) |
20.9 ° C (69.6°F) |
19.7 ° C (67.5°F) |
% 96 | 88% | 4 | Sunrise:06:47 AM Sunset: 05:04 PM |
Moonrise:02:56 AM Moonset: 01:55 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Fog |
19.3 ° C (66.7°F) |
20.2 ° C (68.3°F) |
19.6 ° C (67.4°F) |
% 98 | 0% | 4 | Sunrise:06:47 AM Sunset: 05:04 PM |
Moonrise:03:52 AM Moonset: 02:28 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Partly Cloudy |
19.9 ° C (67.8°F) |
20.7 ° C (69.2°F) |
20.3 ° C (68.5°F) |
% 97 | 0% | 6 | Sunrise:06:48 AM Sunset: 05:05 PM |
Moonrise:04:48 AM Moonset: 03:07 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Partly Cloudy |
20.2 ° C (68.3°F) |
21.4 ° C (70.6°F) |
20.7 ° C (69.2°F) |
% 95 | 0% | 6 | Sunrise:06:48 AM Sunset: 05:05 PM |
Moonrise:05:45 AM Moonset: 03:51 PM Moon Phase ( Waning Crescent ) |
|
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