Grand Island Weather Forecast 15 Days, Weather in Grand Island Today
Current weather conditions and 15 day weather forecast for Grand Island, New York, 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 Island
| 09 August 2026 Sunday 20.1 ° C / 68.2°F  Sunny |
Feels Like : 21.4 ° C / 70.5°F Humidity : % 80 Pressure : 1017 mb Wind Speed : 4.3 kmph / 2.7 miles from WNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 2 |
15 day weather forecast for Grand Island, NY, USA
Weather Forecast for next 15 Days for Grand Island 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 Island, New York 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 09 August 2026 Sunday | Sunny |
17.8 ° C (64°F) |
32.3 ° C (90.1°F) |
24 ° C (75.2°F) |
% 61 | 4% | 6.5 | Sunrise:06:15 AM Sunset: 08:27 PM |
Moonrise:01:40 AM Moonset: 06:18 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday |  Patchy rain nearby |
20.5 ° C (68.9°F) |
27.3 ° C (81.1°F) |
23.2 ° C (73.8°F) |
% 77 | 66% | 2.9 | Sunrise:06:16 AM Sunset: 08:25 PM |
Moonrise:02:51 AM Moonset: 07:10 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Patchy rain nearby |
18.8 ° C (65.8°F) |
26.6 ° C (80°F) |
22.4 ° C (72.3°F) |
% 90 | 89% | 5.2 | Sunrise:06:17 AM Sunset: 08:24 PM |
Moonrise:04:12 AM Moonset: 07:50 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
16.6 ° C (61.9°F) |
26.6 ° C (79.9°F) |
21.2 ° C (70.1°F) |
% 70 | 17% | 6.6 | Sunrise:06:18 AM Sunset: 08:23 PM |
Moonrise:05:36 AM Moonset: 08:22 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday |  Partly Cloudy |
13.5 ° C (56.3°F) |
25.1 ° C (77.2°F) |
19.7 ° C (67.5°F) |
% 73 | 69% | 7 | Sunrise:06:19 AM Sunset: 08:21 PM |
Moonrise:07:00 AM Moonset: 08:49 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Patchy rain nearby |
16.8 ° C (62.2°F) |
24.5 ° C (76.1°F) |
20.2 ° C (68.3°F) |
% 70 | 42% | 6 | Sunrise:06:20 AM Sunset: 08:20 PM |
Moonrise:08:21 AM Moonset: 09:12 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Patchy rain nearby |
15.4 ° C (59.7°F) |
21.8 ° C (71.2°F) |
18.1 ° C (64.5°F) |
% 67 | 57% | 6 | Sunrise:06:21 AM Sunset: 08:18 PM |
Moonrise:09:39 AM Moonset: 09:34 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
13.5 ° C (56.2°F) |
22.2 ° C (72°F) |
17.6 ° C (63.8°F) |
% 62 | 36% | 6 | Sunrise:06:23 AM Sunset: 08:17 PM |
Moonrise:10:55 AM Moonset: 09:57 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
12.8 ° C (55°F) |
23.7 ° C (74.7°F) |
18.2 ° C (64.7°F) |
% 55 | 4% | 6 | Sunrise:06:24 AM Sunset: 08:15 PM |
Moonrise:12:10 PM Moonset: 10:22 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Patchy rain nearby |
16.1 ° C (61.1°F) |
23.2 ° C (73.8°F) |
19.2 ° C (66.6°F) |
% 65 | 57% | 6 | Sunrise:06:25 AM Sunset: 08:14 PM |
Moonrise:01:23 PM Moonset: 10:50 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Patchy rain nearby |
16.5 ° C (61.7°F) |
22.8 ° C (73.1°F) |
19.1 ° C (66.4°F) |
% 82 | 36% | 6 | Sunrise:06:26 AM Sunset: 08:12 PM |
Moonrise:02:33 PM Moonset: 11:24 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Partly Cloudy |
16.8 ° C (62.3°F) |
24.7 ° C (76.4°F) |
20.7 ° C (69.2°F) |
% 81 | 70% | 6 | Sunrise:06:27 AM Sunset: 08:11 PM |
Moonrise:03:39 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday |  Light rain shower |
15 ° C (59°F) |
23.6 ° C (74.4°F) |
19.2 ° C (66.5°F) |
% 93 | 84% | 5 | Sunrise:06:28 AM Sunset: 08:09 PM |
Moonrise:04:39 PM Moonset: 12:06 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
10.9 ° C (51.7°F) |
21.7 ° C (71.1°F) |
16.1 ° C (61°F) |
% 61 | 4% | 6 | Sunrise:06:29 AM Sunset: 08:07 PM |
Moonrise:05:29 PM Moonset: 12:55 AM Moon Phase ( Waxing Gibbous ) |
|
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