Northwest Harwinton Weather Forecast 15 Days, Weather in Northwest Harwinton Today
Current weather conditions and 15 day weather forecast for Northwest Harwinton, Connecticut, 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 Northwest Harwinton
| 20 December 2025 Saturday -0.6 ° C / 30.9°F  Sunny |
Feels Like : -5 ° C / 23.1°F Humidity : % 61 Pressure : 1020 mb Wind Speed : 14 kmph / 8.7 miles from W  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Northwest Harwinton, CT, USA
Weather Forecast for next 15 Days for Northwest Harwinton 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 Northwest Harwinton, Connecticut 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 December 2025 Saturday |  Partly Cloudy |
-2.4 ° C (27.7°F) |
3.1 ° C (37.6°F) |
-0.5 ° C (31.2°F) |
% 71 | 0% | 0.3 | Sunrise:07:16 AM Sunset: 04:24 PM |
Moonrise:08:08 AM Moonset: 04:39 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Partly Cloudy |
-2.8 ° C (27°F) |
5.4 ° C (41.7°F) |
0.7 ° C (33.3°F) |
% 71 | 0% | 0.2 | Sunrise:07:17 AM Sunset: 04:25 PM |
Moonrise:08:52 AM Moonset: 05:42 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-8.6 ° C (16.5°F) |
0.5 ° C (32.9°F) |
-4 ° C (24.7°F) |
% 54 | 0% | 0.3 | Sunrise:07:17 AM Sunset: 04:25 PM |
Moonrise:09:29 AM Moonset: 06:48 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Heavy snow |
-5.3 ° C (22.5°F) |
0.1 ° C (32.2°F) |
-2.2 ° C (28°F) |
% 77 | 73% | 0.1 | Sunrise:07:18 AM Sunset: 04:26 PM |
Moonrise:09:59 AM Moonset: 07:56 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Cloudy |
-4.7 ° C (23.6°F) |
2.7 ° C (36.8°F) |
-0.5 ° C (31.2°F) |
% 83 | 0% | 0 | Sunrise:07:18 AM Sunset: 04:26 PM |
Moonrise:10:24 AM Moonset: 09:03 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Light freezing rain |
-5.2 ° C (22.6°F) |
1.2 ° C (34.2°F) |
-1 ° C (30.3°F) |
% 92 | 52% | 1 | Sunrise:07:19 AM Sunset: 04:27 PM |
Moonrise:10:46 AM Moonset: 10:11 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Patchy rain nearby |
0.1 ° C (32.2°F) |
11.3 ° C (52.3°F) |
5.4 ° C (41.7°F) |
% 93 | 83% | 2 | Sunrise:07:19 AM Sunset: 04:28 PM |
Moonrise:11:07 AM Moonset: 11:20 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
-1.8 ° C (28.7°F) |
5.4 ° C (41.8°F) |
1.6 ° C (34.9°F) |
% 85 | 0% | 2 | Sunrise:07:19 AM Sunset: 04:28 PM |
Moonrise:11:29 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
-4.3 ° C (24.3°F) |
2.4 ° C (36.3°F) |
-1.4 ° C (29.6°F) |
% 76 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:29 PM |
Moonrise:11:51 AM Moonset: 12:30 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Light freezing rain |
-4.5 ° C (23.9°F) |
0.6 ° C (33.1°F) |
-2.2 ° C (28°F) |
% 60 | 71% | 1 | Sunrise:07:20 AM Sunset: 04:30 PM |
Moonrise:12:17 PM Moonset: 01:45 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Moderate snow |
-4.5 ° C (24°F) |
0.3 ° C (32.5°F) |
-2.6 ° C (27.3°F) |
% 64 | 72% | 1 | Sunrise:07:20 AM Sunset: 04:31 PM |
Moonrise:12:49 PM Moonset: 03:03 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-5.8 ° C (21.6°F) |
4.2 ° C (39.5°F) |
-2.2 ° C (28°F) |
% 53 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:31 PM |
Moonrise:01:31 PM Moonset: 04:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Partly Cloudy |
-4.1 ° C (24.6°F) |
2.9 ° C (37.2°F) |
-1.5 ° C (29.2°F) |
% 60 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:32 PM |
Moonrise:02:24 PM Moonset: 05:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Sunny |
-3.2 ° C (26.2°F) |
4.6 ° C (40.4°F) |
-0.8 ° C (30.5°F) |
% 75 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:33 PM |
Moonrise:03:31 PM Moonset: 06:54 AM Moon Phase ( Waxing Gibbous ) |
|
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