Current weather conditions and 15 day weather forecast for Sudbury, 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.
| 17 December 2025 Wednesday -2.8 ° C / 27°F ![]() Clear |
Feels Like : -8.8 ° C / 16.2°F Humidity : % 53 Pressure : 1013 mb Wind Speed : 20.2 kmph / 12.5 miles from SW ![]() 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 17 December 2025 Wednesday | Sunny |
-3.1 ° C (26.4°F) |
11.2 ° C (52.2°F) |
2.8 ° C (37°F) |
% 54 | 0% | 0.2 | Sunrise:07:09 AM Sunset: 04:14 PM |
Moonrise:05:11 AM Moonset: 02:08 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Cloudy |
-1.3 ° C (29.7°F) |
5 ° C (40.9°F) |
2.5 ° C (36.5°F) |
% 88 | 0% | 0.3 | Sunrise:07:10 AM Sunset: 04:15 PM |
Moonrise:06:13 AM Moonset: 02:47 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Heavy rain |
2.1 ° C (35.8°F) |
13.3 ° C (55.9°F) |
9.6 ° C (49.3°F) |
% 92 | 87% | 0 | Sunrise:07:10 AM Sunset: 04:15 PM |
Moonrise:07:12 AM Moonset: 03:34 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Sunny |
-3.3 ° C (26°F) |
1.6 ° C (34.9°F) |
-1.1 ° C (30°F) |
% 53 | 0% | 0.2 | Sunrise:07:11 AM Sunset: 04:15 PM |
Moonrise:08:03 AM Moonset: 04:29 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Patchy rain nearby |
-1.9 ° C (28.5°F) |
7 ° C (44.7°F) |
2.3 ° C (36.2°F) |
% 67 | 88% | 0 | Sunrise:07:12 AM Sunset: 04:16 PM |
Moonrise:08:47 AM Moonset: 05:32 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-4.6 ° C (23.8°F) |
-0.9 ° C (30.4°F) |
-3 ° C (26.5°F) |
% 45 | 0% | 2 | Sunrise:07:12 AM Sunset: 04:16 PM |
Moonrise:09:23 AM Moonset: 06:38 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Light freezing rain |
-3.9 ° C (25.1°F) |
3.7 ° C (38.6°F) |
0.1 ° C (32.2°F) |
% 53 | 70% | 1 | Sunrise:07:12 AM Sunset: 04:17 PM |
Moonrise:09:53 AM Moonset: 07:47 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Overcast |
-0.8 ° C (30.5°F) |
6.8 ° C (44.3°F) |
3.8 ° C (38.8°F) |
% 76 | 0% | 1 | Sunrise:07:13 AM Sunset: 04:18 PM |
Moonrise:10:18 AM Moonset: 08:55 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Patchy rain nearby |
-1.4 ° C (29.4°F) |
6 ° C (42.9°F) |
2.8 ° C (37.1°F) |
% 80 | 0% | 1 | Sunrise:07:13 AM Sunset: 04:18 PM |
Moonrise:10:40 AM Moonset: 10:03 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
-3.6 ° C (25.5°F) |
1.9 ° C (35.4°F) |
-0.1 ° C (31.9°F) |
% 62 | 0% | 2 | Sunrise:07:14 AM Sunset: 04:19 PM |
Moonrise:11:00 AM Moonset: 11:13 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
-6.1 ° C (21.1°F) |
-0.3 ° C (31.5°F) |
-3.2 ° C (26.3°F) |
% 45 | 0% | 2 | Sunrise:07:14 AM Sunset: 04:20 PM |
Moonrise:11:21 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Light freezing rain |
-10 ° C (14°F) |
-1 ° C (30.3°F) |
-4.6 ° C (23.7°F) |
% 57 | 87% | 1 | Sunrise:07:14 AM Sunset: 04:20 PM |
Moonrise:11:43 AM Moonset: 12:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-12.1 ° C (10.2°F) |
-5.7 ° C (21.7°F) |
-8.6 ° C (16.6°F) |
% 36 | 0% | 2 | Sunrise:07:14 AM Sunset: 04:21 PM |
Moonrise:12:09 PM Moonset: 01:39 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Patchy moderate snow |
-5.8 ° C (21.5°F) |
2.7 ° C (36.9°F) |
-2.3 ° C (27.8°F) |
% 70 | 88% | 1 | Sunrise:07:15 AM Sunset: 04:22 PM |
Moonrise:12:40 PM Moonset: 02:57 AM Moon Phase ( Waxing Gibbous ) |
|