Belfast Weather Forecast 15 Days, Weather in Belfast Today
Current weather conditions and 15 day weather forecast for Belfast, 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 Belfast
| 25 December 2025 Thursday -0.6 ° C / 30.9°F  Overcast |
Feels Like : -4.2 ° C / 24.5°F Humidity : % 74 Pressure : 1020 mb Wind Speed : 10.4 kmph / 6.5 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Belfast, NY, USA
Weather Forecast for next 15 Days for Belfast 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 Belfast, 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 | Overcast |
-7.3 ° C (18.9°F) |
1.1 ° C (34°F) |
-1.7 ° C (29°F) |
% 81 | 0% | 0.2 | Sunrise:07:41 AM Sunset: 04:46 PM |
Moonrise:11:08 AM Moonset: 10:32 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Moderate or heavy snow showers |
-8.9 ° C (16°F) |
-6.7 ° C (20°F) |
-7.5 ° C (18.5°F) |
% 76 | 89% | 0.1 | Sunrise:07:41 AM Sunset: 04:46 PM |
Moonrise:11:29 AM Moonset: 11:42 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Partly Cloudy |
-6.2 ° C (20.8°F) |
-1.3 ° C (29.7°F) |
-3.8 ° C (25.2°F) |
% 83 | 0% | 0.3 | Sunrise:07:42 AM Sunset: 04:47 PM |
Moonrise:11:49 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Mist |
-9.9 ° C (14.3°F) |
0.7 ° C (33.3°F) |
-3.8 ° C (25.2°F) |
% 95 | 62% | 0.2 | Sunrise:07:42 AM Sunset: 04:48 PM |
Moonrise:12:11 PM Moonset: 12:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Blizzard |
-8.2 ° C (17.2°F) |
6.2 ° C (43.1°F) |
-0.3 ° C (31.5°F) |
% 94 | 61% | 0 | Sunrise:07:42 AM Sunset: 04:49 PM |
Moonrise:12:36 PM Moonset: 02:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Blizzard |
-8.2 ° C (17.3°F) |
-5.9 ° C (21.3°F) |
-7 ° C (19.5°F) |
% 90 | 85% | 1 | Sunrise:07:42 AM Sunset: 04:49 PM |
Moonrise:01:08 PM Moonset: 03:27 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Moderate snow |
-7.2 ° C (19.1°F) |
-3.2 ° C (26.2°F) |
-5.1 ° C (22.9°F) |
% 88 | 81% | 1 | Sunrise:07:43 AM Sunset: 04:50 PM |
Moonrise:01:49 PM Moonset: 04:48 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Light snow |
-5.9 ° C (21.4°F) |
-1.9 ° C (28.6°F) |
-3.7 ° C (25.3°F) |
% 95 | 88% | 1 | Sunrise:07:43 AM Sunset: 04:51 PM |
Moonrise:02:42 PM Moonset: 06:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Freezing fog |
-8.6 ° C (16.5°F) |
1.4 ° C (34.6°F) |
-3.1 ° C (26.4°F) |
% 96 | 0% | 1 | Sunrise:07:43 AM Sunset: 04:52 PM |
Moonrise:03:50 PM Moonset: 07:19 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday |  Patchy rain nearby |
-2 ° C (28.4°F) |
3.2 ° C (37.8°F) |
1.9 ° C (35.4°F) |
% 93 | 82% | 1 | Sunrise:07:43 AM Sunset: 04:53 PM |
Moonrise:05:06 PM Moonset: 08:16 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday |  Blowing snow |
-5.3 ° C (22.5°F) |
2.5 ° C (36.4°F) |
-0.1 ° C (31.9°F) |
% 85 | 80% | 1 | Sunrise:07:43 AM Sunset: 04:54 PM |
Moonrise:06:26 PM Moonset: 09:01 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Light snow |
-5.6 ° C (21.9°F) |
-3.9 ° C (25°F) |
-5 ° C (23°F) |
% 80 | 89% | 1 | Sunrise:07:43 AM Sunset: 04:55 PM |
Moonrise:07:45 PM Moonset: 09:35 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday | Partly Cloudy |
-7.5 ° C (18.5°F) |
-4.2 ° C (24.4°F) |
-6.1 ° C (21.1°F) |
% 81 | 0% | 2 | Sunrise:07:43 AM Sunset: 04:56 PM |
Moonrise:08:58 PM Moonset: 10:01 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday | Moderate or heavy snow showers |
-7.9 ° C (17.8°F) |
-1.8 ° C (28.7°F) |
-4.4 ° C (24°F) |
% 75 | 64% | 1 | Sunrise:07:42 AM Sunset: 04:57 PM |
Moonrise:10:07 PM Moonset: 10:23 AM Moon Phase ( Waning Gibbous ) |
|
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