Current weather conditions and 15 day weather forecast for Belmont (CDP), Massachusetts, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
| 05 December 2025 Friday -12.8 ° C / 9°F ![]() Clear |
Feels Like : -20 ° C / -4.1°F Humidity : % 43 Pressure : 1026 mb Wind Speed : 14.4 kmph / 8.9 miles from NW ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday | Sunny |
-11.4 ° C (11.5°F) |
-1.7 ° C (28.9°F) |
-7.1 ° C (19.2°F) |
% 44 | 0% | 0.3 | Sunrise:06:59 AM Sunset: 04:12 PM |
Moonrise:04:35 PM Moonset: 08:05 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Overcast |
-6 ° C (21.2°F) |
-0.2 ° C (31.6°F) |
-3.1 ° C (26.4°F) |
% 84 | 0% | 0.2 | Sunrise:07:00 AM Sunset: 04:12 PM |
Moonrise:05:48 PM Moonset: 09:11 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Mist |
-3.4 ° C (25.9°F) |
-1.2 ° C (29.8°F) |
-1.7 ° C (28.9°F) |
% 80 | 0% | 0.2 | Sunrise:07:01 AM Sunset: 04:12 PM |
Moonrise:07:07 PM Moonset: 10:01 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Moderate snow |
-10.3 ° C (13.4°F) |
-2.5 ° C (27.5°F) |
-4 ° C (24.7°F) |
% 64 | 62% | 0.2 | Sunrise:07:02 AM Sunset: 04:12 PM |
Moonrise:08:24 PM Moonset: 10:39 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday | Partly Cloudy |
-11.5 ° C (11.4°F) |
0.1 ° C (32.2°F) |
-6.6 ° C (20.2°F) |
% 66 | 0% | 0 | Sunrise:07:03 AM Sunset: 04:12 PM |
Moonrise:09:38 PM Moonset: 11:09 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Overcast |
-0.4 ° C (31.4°F) |
4.6 ° C (40.3°F) |
2.6 ° C (36.7°F) |
% 81 | 0% | 1 | Sunrise:07:03 AM Sunset: 04:12 PM |
Moonrise:10:47 PM Moonset: 11:32 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Patchy rain nearby |
2.9 ° C (37.2°F) |
8.1 ° C (46.6°F) |
5.3 ° C (41.5°F) |
% 80 | 0% | 2 | Sunrise:07:04 AM Sunset: 04:12 PM |
Moonrise:11:53 PM Moonset: 11:53 AM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Sunny |
-1.3 ° C (29.7°F) |
3.9 ° C (39.1°F) |
1.1 ° C (34°F) |
% 65 | 0% | 2 | Sunrise:07:05 AM Sunset: 04:12 PM |
Moonrise:No moonrise Moonset: 12:11 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Partly Cloudy |
-2.6 ° C (27.3°F) |
1.8 ° C (35.2°F) |
-0.8 ° C (30.5°F) |
% 52 | 0% | 2 | Sunrise:07:06 AM Sunset: 04:12 PM |
Moonrise:12:56 AM Moonset: 12:29 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Sunny |
-2.9 ° C (26.7°F) |
2.5 ° C (36.5°F) |
-1 ° C (30.3°F) |
% 51 | 0% | 2 | Sunrise:07:07 AM Sunset: 04:12 PM |
Moonrise:01:59 AM Moonset: 12:49 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Sunny |
-2.2 ° C (28.1°F) |
3.5 ° C (38.3°F) |
-0.4 ° C (31.2°F) |
% 54 | 0% | 2 | Sunrise:07:07 AM Sunset: 04:12 PM |
Moonrise:03:02 AM Moonset: 01:11 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Patchy rain nearby |
-0.9 ° C (30.3°F) |
4.2 ° C (39.6°F) |
2.1 ° C (35.7°F) |
% 84 | 86% | 1 | Sunrise:07:08 AM Sunset: 04:13 PM |
Moonrise:04:06 AM Moonset: 01:36 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Patchy rain nearby |
2.7 ° C (36.9°F) |
3.5 ° C (38.2°F) |
3.1 ° C (37.7°F) |
% 98 | 89% | 1 | Sunrise:07:09 AM Sunset: 04:13 PM |
Moonrise:05:10 AM Moonset: 02:07 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Patchy rain nearby |
4 ° C (39.2°F) |
6.4 ° C (43.4°F) |
5.5 ° C (41.9°F) |
% 98 | 85% | 2 | Sunrise:07:09 AM Sunset: 04:13 PM |
Moonrise:06:12 AM Moonset: 02:45 PM Moon Phase ( Waning Crescent ) |
|