Grand Isle Weather Forecast 15 Days, Weather in Grand Isle Today
Current weather conditions and 15 day weather forecast for Grand Isle, Vermont, 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
| 27 September 2026 Sunday 18 ° C / 64.3°F  Overcast |
Feels Like : 13.6 ° C / 56.5°F Humidity : % 70 Pressure : 1016 mb Wind Speed : 26.3 kmph / 16.3 miles from NNE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Grand Isle, VT, USA
Weather Forecast for next 15 Days for Grand Isle 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, Vermont 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 26 September 2026 Saturday | Overcast |
13.7 ° C (56.7°F) |
20.7 ° C (69.2°F) |
16.7 ° C (62.1°F) |
% 70 | 18% | 4.5 | Sunrise:06:45 AM Sunset: 06:43 PM |
Moonrise:06:29 PM Moonset: 06:43 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Overcast |
13.9 ° C (57.1°F) |
16.7 ° C (62°F) |
15.4 ° C (59.8°F) |
% 73 | 63% | 0.8 | Sunrise:06:46 AM Sunset: 06:41 PM |
Moonrise:06:48 PM Moonset: 07:50 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Overcast |
13.7 ° C (56.7°F) |
17.8 ° C (64°F) |
15.5 ° C (59.8°F) |
% 82 | 82% | 3.5 | Sunrise:06:47 AM Sunset: 06:40 PM |
Moonrise:07:09 PM Moonset: 09:00 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday |  Light rain shower |
12.7 ° C (54.9°F) |
15.2 ° C (59.3°F) |
13.8 ° C (56.8°F) |
% 89 | 87% | 1.2 | Sunrise:06:48 AM Sunset: 06:38 PM |
Moonrise:07:36 PM Moonset: 10:12 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Overcast |
15.3 ° C (59.5°F) |
19 ° C (66.1°F) |
16.6 ° C (61.9°F) |
% 84 | 24% | 3.8 | Sunrise:06:50 AM Sunset: 06:36 PM |
Moonrise:08:10 PM Moonset: 11:25 AM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday |  Patchy rain nearby |
16.1 ° C (61°F) |
17.5 ° C (63.5°F) |
16.8 ° C (62.3°F) |
% 92 | 89% | 4 | Sunrise:06:51 AM Sunset: 06:34 PM |
Moonrise:08:54 PM Moonset: 12:37 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Patchy rain nearby |
13.3 ° C (55.9°F) |
18.3 ° C (64.9°F) |
15.7 ° C (60.2°F) |
% 64 | 36% | 5 | Sunrise:06:52 AM Sunset: 06:32 PM |
Moonrise:09:51 PM Moonset: 01:43 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Overcast |
10 ° C (49.9°F) |
14.6 ° C (58.2°F) |
11.8 ° C (53.2°F) |
% 64 | 68% | 3 | Sunrise:06:53 AM Sunset: 06:30 PM |
Moonrise:11:00 PM Moonset: 02:40 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday | Light rain shower |
13 ° C (55.4°F) |
16.8 ° C (62.3°F) |
15.1 ° C (59.3°F) |
% 93 | 93% | 4 | Sunrise:06:54 AM Sunset: 06:28 PM |
Moonrise:Does not rise today Moonset: 03:25 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Light rain shower |
8.5 ° C (47.3°F) |
19.4 ° C (66.9°F) |
14.4 ° C (57.9°F) |
% 95 | 94% | 4 | Sunrise:06:56 AM Sunset: 06:27 PM |
Moonrise:12:18 AM Moonset: 04:00 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Light rain shower |
5.7 ° C (42.3°F) |
10.5 ° C (51°F) |
7.9 ° C (46.2°F) |
% 76 | 75% | 4 | Sunrise:06:57 AM Sunset: 06:25 PM |
Moonrise:01:39 AM Moonset: 04:28 PM Moon Phase ( Waning Crescent ) |
|
| 07 October 2026 Wednesday |  Sunny |
7 ° C (44.6°F) |
14.6 ° C (58.2°F) |
9.9 ° C (49.8°F) |
% 61 | 7% | 4 | Sunrise:06:58 AM Sunset: 06:23 PM |
Moonrise:03:00 AM Moonset: 04:52 PM Moon Phase ( Waning Crescent ) |
|
| 08 October 2026 Thursday | Overcast |
9.4 ° C (49°F) |
11.9 ° C (53.4°F) |
11 ° C (51.8°F) |
% 70 | 15% | 4 | Sunrise:06:59 AM Sunset: 06:21 PM |
Moonrise:04:20 AM Moonset: 05:13 PM Moon Phase ( Waning Crescent ) |
|
| 09 October 2026 Friday | Sunny |
9.3 ° C (48.7°F) |
15.9 ° C (60.7°F) |
12 ° C (53.6°F) |
% 75 | 7% | 5 | Sunrise:07:01 AM Sunset: 06:19 PM |
Moonrise:05:39 AM Moonset: 05:34 PM Moon Phase ( New Moon ) |
|
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