Belfast Weather Forecast 15 Days, Weather in Belfast Today
Current weather conditions and 15 day weather forecast for Belfast, Maine, 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
| 13 May 2026 Wednesday 8.1 ° C / 46.6°F  Light rain |
Feels Like : 6.3 ° C / 43.3°F Humidity : % 100 Pressure : 1016 mb Wind Speed : 10.4 kmph / 6.5 miles from SE  Visibility : 16 km Precipitation (rainfall) : 0.35 mm Cloud (%) : 100 |
15 day weather forecast for Belfast, ME, 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, Maine 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 13 May 2026 Wednesday |  Patchy rain nearby |
3.2 ° C (37.8°F) |
12.8 ° C (55°F) |
7.8 ° C (46.1°F) |
% 69 | 83% | 5.4 | Sunrise:05:11 AM Sunset: 07:55 PM |
Moonrise:03:09 AM Moonset: 04:17 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday |  Moderate rain |
7.4 ° C (45.3°F) |
13.9 ° C (57°F) |
10.1 ° C (50.2°F) |
% 91 | 90% | 3.3 | Sunrise:05:10 AM Sunset: 07:56 PM |
Moonrise:03:30 AM Moonset: 05:36 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Moderate rain |
8.9 ° C (48°F) |
10.9 ° C (51.6°F) |
9.8 ° C (49.6°F) |
% 97 | 86% | 0.7 | Sunrise:05:09 AM Sunset: 07:57 PM |
Moonrise:03:55 AM Moonset: 06:59 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday |  Partly Cloudy |
9 ° C (48.2°F) |
20 ° C (68°F) |
13.7 ° C (56.7°F) |
% 76 | 0% | 4 | Sunrise:05:08 AM Sunset: 07:58 PM |
Moonrise:04:26 AM Moonset: 08:25 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday |  Sunny |
9.4 ° C (48.9°F) |
23 ° C (73.4°F) |
15.8 ° C (60.5°F) |
% 68 | 0% | 5 | Sunrise:05:07 AM Sunset: 07:59 PM |
Moonrise:05:08 AM Moonset: 09:46 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Sunny |
5 ° C (41°F) |
19.3 ° C (66.7°F) |
9.8 ° C (49.7°F) |
% 60 | 0% | 3 | Sunrise:05:06 AM Sunset: 08:00 PM |
Moonrise:06:03 AM Moonset: 10:56 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
8.1 ° C (46.6°F) |
23 ° C (73.5°F) |
16.4 ° C (61.5°F) |
% 77 | 84% | 4 | Sunrise:05:05 AM Sunset: 08:01 PM |
Moonrise:07:11 AM Moonset: 11:51 PM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
11.3 ° C (52.3°F) |
21.6 ° C (70.8°F) |
17.2 ° C (62.9°F) |
% 62 | 0% | 5 | Sunrise:05:04 AM Sunset: 08:02 PM |
Moonrise:08:29 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Patchy rain nearby |
7.7 ° C (45.8°F) |
11.2 ° C (52.1°F) |
10 ° C (50.1°F) |
% 89 | 88% | 3 | Sunrise:05:03 AM Sunset: 08:03 PM |
Moonrise:09:50 AM Moonset: 12:32 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Partly Cloudy |
5.9 ° C (42.6°F) |
16 ° C (60.9°F) |
10.4 ° C (50.8°F) |
% 63 | 0% | 4 | Sunrise:05:02 AM Sunset: 08:04 PM |
Moonrise:11:08 AM Moonset: 01:03 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
4 ° C (39.2°F) |
17.2 ° C (63°F) |
10.7 ° C (51.3°F) |
% 59 | 0% | 4 | Sunrise:05:01 AM Sunset: 08:05 PM |
Moonrise:12:21 PM Moonset: 01:27 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Sunny |
6.2 ° C (43.1°F) |
18.6 ° C (65.4°F) |
12.6 ° C (54.7°F) |
% 68 | 0% | 4 | Sunrise:05:00 AM Sunset: 08:06 PM |
Moonrise:01:32 PM Moonset: 01:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Patchy rain nearby |
9.5 ° C (49.1°F) |
15.4 ° C (59.7°F) |
12.4 ° C (54.3°F) |
% 90 | 86% | 3 | Sunrise:04:59 AM Sunset: 08:07 PM |
Moonrise:02:39 PM Moonset: 02:05 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 May 2026 Tuesday | Patchy rain nearby |
9.8 ° C (49.6°F) |
19.7 ° C (67.4°F) |
13.8 ° C (56.8°F) |
% 86 | 86% | 3 | Sunrise:04:58 AM Sunset: 08:08 PM |
Moonrise:03:46 PM Moonset: 02:23 AM Moon Phase ( Waxing Gibbous ) |
|
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