Islandia Weather Forecast 15 Days, Weather in Islandia Today
Current weather conditions and 15 day weather forecast for Islandia, 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 Islandia
| 26 December 2025 Friday -1.1 ° C / 30°F  Partly cloudy |
Feels Like : -7.7 ° C / 18.2°F Humidity : % 47 Pressure : 1019 mb Wind Speed : 27.7 kmph / 17.2 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15 day weather forecast for Islandia, NY, USA
Weather Forecast for next 15 Days for Islandia 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 Islandia, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 December 2025 Thursday |  Sunny |
-2.1 ° C (28.2°F) |
11.1 ° C (52°F) |
3.2 ° C (37.7°F) |
% 68 | 0% | 0.2 | Sunrise:07:16 AM Sunset: 04:31 PM |
Moonrise:10:45 AM Moonset: 10:12 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Moderate or heavy snow showers |
-7.6 ° C (18.3°F) |
-4 ° C (24.8°F) |
-5.1 ° C (22.8°F) |
% 61 | 86% | 0.2 | Sunrise:07:16 AM Sunset: 04:31 PM |
Moonrise:11:08 AM Moonset: 11:21 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Moderate or heavy snow showers |
-3.6 ° C (25.5°F) |
0.3 ° C (32.5°F) |
-1.5 ° C (29.3°F) |
% 88 | 85% | 0.2 | Sunrise:07:16 AM Sunset: 04:32 PM |
Moonrise:11:30 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Light freezing rain |
-2.6 ° C (27.3°F) |
1.6 ° C (34.8°F) |
-0.5 ° C (31.1°F) |
% 89 | 70% | 0.3 | Sunrise:07:17 AM Sunset: 04:33 PM |
Moonrise:11:53 AM Moonset: 12:30 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Moderate rain |
2.2 ° C (36°F) |
10.3 ° C (50.6°F) |
6.3 ° C (43.4°F) |
% 90 | 87% | 0.1 | Sunrise:07:17 AM Sunset: 04:34 PM |
Moonrise:12:20 PM Moonset: 01:44 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Cloudy |
-2 ° C (28.4°F) |
-0.7 ° C (30.7°F) |
-0.7 ° C (30.7°F) |
% 52 | 0% | 0 | Sunrise:07:17 AM Sunset: 04:34 PM |
Moonrise:12:53 PM Moonset: 03:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Light freezing rain |
-1.1 ° C (30°F) |
2 ° C (35.5°F) |
0.4 ° C (32.7°F) |
% 61 | 61% | 1 | Sunrise:07:17 AM Sunset: 04:35 PM |
Moonrise:01:35 PM Moonset: 04:20 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Light freezing rain |
-5.4 ° C (22.3°F) |
-4 ° C (24.7°F) |
-4.2 ° C (24.4°F) |
% 55 | 66% | 1 | Sunrise:07:17 AM Sunset: 04:36 PM |
Moonrise:02:29 PM Moonset: 05:39 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Heavy snow |
-5.3 ° C (22.5°F) |
2.3 ° C (36.2°F) |
-0.5 ° C (31.2°F) |
% 79 | 87% | 1 | Sunrise:07:18 AM Sunset: 04:37 PM |
Moonrise:03:36 PM Moonset: 06:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Sunny |
-6.2 ° C (20.8°F) |
-2.9 ° C (26.7°F) |
-5.1 ° C (22.7°F) |
% 61 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:38 PM |
Moonrise:04:52 PM Moonset: 07:49 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Partly Cloudy |
-4.5 ° C (23.9°F) |
0.8 ° C (33.5°F) |
-1.4 ° C (29.5°F) |
% 61 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:39 PM |
Moonrise:06:10 PM Moonset: 08:34 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Partly Cloudy |
1.4 ° C (34.6°F) |
3.7 ° C (38.7°F) |
2.3 ° C (36.1°F) |
% 71 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:40 PM |
Moonrise:07:27 PM Moonset: 09:10 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday |  Patchy rain nearby |
1.9 ° C (35.4°F) |
3.2 ° C (37.7°F) |
3.1 ° C (37.5°F) |
% 92 | 84% | 1 | Sunrise:07:18 AM Sunset: 04:41 PM |
Moonrise:08:39 PM Moonset: 09:38 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday | Patchy rain nearby |
4.7 ° C (40.4°F) |
8.9 ° C (48°F) |
7.2 ° C (44.9°F) |
% 98 | 82% | 2 | Sunrise:07:17 AM Sunset: 04:42 PM |
Moonrise:09:47 PM Moonset: 10:01 AM Moon Phase ( Waning Gibbous ) |
|
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