Williamstown (CDP) Weather Forecast 15 Days, Weather in Williamstown (CDP) Today
Current weather conditions and 15 day weather forecast for Williamstown (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.
Current weather conditions at Williamstown (CDP)
| 16 December 2025 Tuesday -8.3 ° C / 17.1°F  Partly cloudy |
Feels Like : -10 ° C / 13.9°F Humidity : % 80 Pressure : 1022 mb Wind Speed : 3.6 kmph / 2.2 miles from W  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15 day weather forecast for Williamstown (CDP), MA, USA
Weather Forecast for next 15 Days for Williamstown (CDP) 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 Williamstown (CDP), Massachusetts 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 16 December 2025 Tuesday |  Sunny |
-9.8 ° C (14.4°F) |
0 ° C (32°F) |
-5.7 ° C (21.7°F) |
% 67 | 0% | 0.3 | Sunrise:07:17 AM Sunset: 04:20 PM |
Moonrise:04:15 AM Moonset: 01:44 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Overcast |
-5.3 ° C (22.5°F) |
0.6 ° C (33.1°F) |
-2.5 ° C (27.5°F) |
% 82 | 0% | 0.3 | Sunrise:07:18 AM Sunset: 04:20 PM |
Moonrise:05:20 AM Moonset: 02:14 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Partly Cloudy |
-8.8 ° C (16.2°F) |
2.9 ° C (37.1°F) |
-1.3 ° C (29.7°F) |
% 92 | 0% | 0.3 | Sunrise:07:18 AM Sunset: 04:21 PM |
Moonrise:06:22 AM Moonset: 02:52 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy rain |
-8.1 ° C (17.5°F) |
12.3 ° C (54.1°F) |
3.7 ° C (38.6°F) |
% 92 | 82% | 0.1 | Sunrise:07:19 AM Sunset: 04:21 PM |
Moonrise:07:21 AM Moonset: 03:40 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Partly Cloudy |
-12.2 ° C (10°F) |
-5.2 ° C (22.6°F) |
-9.4 ° C (15.2°F) |
% 76 | 0% | 0 | Sunrise:07:20 AM Sunset: 04:21 PM |
Moonrise:08:13 AM Moonset: 04:35 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Light freezing rain |
-7.1 ° C (19.3°F) |
3.1 ° C (37.6°F) |
-1.4 ° C (29.6°F) |
% 87 | 87% | 1 | Sunrise:07:20 AM Sunset: 04:22 PM |
Moonrise:08:56 AM Moonset: 05:38 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Partly Cloudy |
-9.6 ° C (14.7°F) |
-3.5 ° C (25.6°F) |
-6.4 ° C (20.5°F) |
% 82 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:22 PM |
Moonrise:09:32 AM Moonset: 06:45 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Heavy snow |
-11.5 ° C (11.4°F) |
-1.5 ° C (29.3°F) |
-6.2 ° C (20.9°F) |
% 89 | 60% | 1 | Sunrise:07:21 AM Sunset: 04:23 PM |
Moonrise:10:01 AM Moonset: 07:53 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
-7.3 ° C (18.9°F) |
-0.8 ° C (30.6°F) |
-2.9 ° C (26.8°F) |
% 82 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:24 PM |
Moonrise:10:26 AM Moonset: 09:02 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Partly Cloudy |
-12.6 ° C (9.2°F) |
-3.2 ° C (26.3°F) |
-7.3 ° C (18.8°F) |
% 79 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:24 PM |
Moonrise:10:47 AM Moonset: 10:10 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Ice pellets |
-3.8 ° C (25.2°F) |
1.4 ° C (34.4°F) |
-0.5 ° C (31.1°F) |
% 97 | 89% | 1 | Sunrise:07:22 AM Sunset: 04:25 PM |
Moonrise:11:08 AM Moonset: 11:20 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
-13.5 ° C (7.6°F) |
-4.6 ° C (23.7°F) |
-5.9 ° C (21.3°F) |
% 95 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:26 PM |
Moonrise:11:28 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Mist |
-12.7 ° C (9.2°F) |
-2.9 ° C (26.7°F) |
-9.3 ° C (15.2°F) |
% 93 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:26 PM |
Moonrise:11:50 AM Moonset: 12:32 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Freezing fog |
-18.8 ° C (-1.9°F) |
-5.4 ° C (22.3°F) |
-13.3 ° C (8.1°F) |
% 94 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:27 PM |
Moonrise:12:15 PM Moonset: 01:47 AM Moon Phase ( Waxing Gibbous ) |
|
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