Groton Weather Forecast 15 Days, Weather in Groton Today
Current weather conditions and 15 day weather forecast for Groton, 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 Groton
| 25 December 2025 Thursday -2.8 ° C / 27°F  Partly Cloudy |
Feels Like : -9.1 ° C / 15.7°F Humidity : % 50 Pressure : 1013 mb Wind Speed : 22 kmph / 13.6 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15 day weather forecast for Groton, MA, USA
Weather Forecast for next 15 Days for Groton 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 Groton, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 December 2025 Thursday |  Sunny |
-8.1 ° C (17.5°F) |
3.9 ° C (39°F) |
-2.8 ° C (26.9°F) |
% 73 | 0% | 0.2 | Sunrise:07:15 AM Sunset: 04:18 PM |
Moonrise:10:41 AM Moonset: 10:04 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
-12.3 ° C (9.9°F) |
-6.5 ° C (20.3°F) |
-8.5 ° C (16.6°F) |
% 38 | 0% | 0.2 | Sunrise:07:15 AM Sunset: 04:19 PM |
Moonrise:11:01 AM Moonset: 11:14 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
-8.7 ° C (16.3°F) |
-0.9 ° C (30.4°F) |
-5.4 ° C (22.2°F) |
% 40 | 0% | 0.2 | Sunrise:07:16 AM Sunset: 04:20 PM |
Moonrise:11:22 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
-9.6 ° C (14.7°F) |
1.8 ° C (35.3°F) |
-4.7 ° C (23.5°F) |
% 73 | 0% | 0.2 | Sunrise:07:16 AM Sunset: 04:20 PM |
Moonrise:11:44 AM Moonset: 12:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Light rain |
-4.7 ° C (23.5°F) |
4.4 ° C (40°F) |
-0.3 ° C (31.5°F) |
% 82 | 88% | 0 | Sunrise:07:16 AM Sunset: 04:21 PM |
Moonrise:12:09 PM Moonset: 01:40 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Partly Cloudy |
-8.4 ° C (16.8°F) |
-4 ° C (24.8°F) |
-6.2 ° C (20.9°F) |
% 65 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:22 PM |
Moonrise:12:40 PM Moonset: 02:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Partly Cloudy |
-8.6 ° C (16.5°F) |
-2.6 ° C (27.4°F) |
-5.4 ° C (22.3°F) |
% 72 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:23 PM |
Moonrise:01:21 PM Moonset: 04:20 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Heavy snow |
-9.5 ° C (14.8°F) |
-5.4 ° C (22.3°F) |
-5.8 ° C (21.6°F) |
% 77 | 78% | 1 | Sunrise:07:16 AM Sunset: 04:24 PM |
Moonrise:02:14 PM Moonset: 05:40 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Sunny |
-18.2 ° C (-0.8°F) |
-13 ° C (8.6°F) |
-15.2 ° C (4.6°F) |
% 60 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:25 PM |
Moonrise:03:21 PM Moonset: 06:51 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Sunny |
-16 ° C (3.2°F) |
-8 ° C (17.6°F) |
-12.4 ° C (9.7°F) |
% 63 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:25 PM |
Moonrise:04:37 PM Moonset: 07:50 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Partly Cloudy |
-11.8 ° C (10.7°F) |
0.2 ° C (32.4°F) |
-6.3 ° C (20.7°F) |
% 74 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:26 PM |
Moonrise:05:58 PM Moonset: 08:34 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday |  Heavy freezing drizzle |
-3.2 ° C (26.3°F) |
-0.9 ° C (30.4°F) |
-1.9 ° C (28.6°F) |
% 92 | 60% | 1 | Sunrise:07:16 AM Sunset: 04:27 PM |
Moonrise:07:16 PM Moonset: 09:08 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday |  Freezing fog |
-1.9 ° C (28.6°F) |
1.5 ° C (34.7°F) |
0.1 ° C (32.2°F) |
% 97 | 77% | 1 | Sunrise:07:16 AM Sunset: 04:28 PM |
Moonrise:08:30 PM Moonset: 09:34 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday | Sunny |
-8.4 ° C (16.9°F) |
-3.2 ° C (26.2°F) |
-3.8 ° C (25.1°F) |
% 70 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:29 PM |
Moonrise:09:40 PM Moonset: 09:56 AM Moon Phase ( Waning Gibbous ) |
|
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