Collinsville Weather Forecast 15 Days, Weather in Collinsville Today
Current weather conditions and 15 day weather forecast for Collinsville, 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 Collinsville
| 24 December 2025 Wednesday 1.7 ° C / 35.1°F  Mist |
Feels Like : -0.4 ° C / 31.3°F Humidity : % 96 Pressure : 1012 mb Wind Speed : 6.8 kmph / 4.3 miles from SSW  Visibility : 4.8 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Collinsville, CT, USA
Weather Forecast for next 15 Days for Collinsville 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 Collinsville, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 23 December 2025 Tuesday |  Moderate or heavy snow showers |
-1.3 ° C (29.7°F) |
2.9 ° C (37.2°F) |
1 ° C (33.7°F) |
% 85 | 88% | 0.1 | Sunrise:07:16 AM Sunset: 04:24 PM |
Moonrise:09:57 AM Moonset: 07:54 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Sunny |
-1.8 ° C (28.8°F) |
5.4 ° C (41.7°F) |
1.8 ° C (35.3°F) |
% 73 | 0% | 0.3 | Sunrise:07:17 AM Sunset: 04:25 PM |
Moonrise:10:22 AM Moonset: 09:02 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Overcast |
-2.6 ° C (27.3°F) |
1.6 ° C (34.9°F) |
-0.7 ° C (30.7°F) |
% 76 | 0% | 0.2 | Sunrise:07:17 AM Sunset: 04:26 PM |
Moonrise:10:45 AM Moonset: 10:09 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Partly Cloudy |
-9.2 ° C (15.4°F) |
-4.4 ° C (24.1°F) |
-6 ° C (21.2°F) |
% 43 | 0% | 0.2 | Sunrise:07:17 AM Sunset: 04:26 PM |
Moonrise:11:06 AM Moonset: 11:18 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Patchy moderate snow |
-5.1 ° C (22.9°F) |
-1 ° C (30.2°F) |
-3.3 ° C (26.1°F) |
% 56 | 80% | 0.2 | Sunrise:07:18 AM Sunset: 04:27 PM |
Moonrise:11:27 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Moderate or heavy snow showers |
-3.8 ° C (25.2°F) |
1.2 ° C (34.2°F) |
-1.8 ° C (28.7°F) |
% 77 | 89% | 0 | Sunrise:07:18 AM Sunset: 04:28 PM |
Moonrise:11:50 AM Moonset: 12:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Patchy rain nearby |
-7.9 ° C (17.8°F) |
-2.4 ° C (27.6°F) |
-3 ° C (26.5°F) |
% 65 | 0% | 1 | Sunrise:07:18 AM Sunset: 04:28 PM |
Moonrise:12:15 PM Moonset: 01:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Cloudy |
-6.2 ° C (20.9°F) |
-1.2 ° C (29.8°F) |
-4.1 ° C (24.6°F) |
% 60 | 0% | 1 | Sunrise:07:18 AM Sunset: 04:29 PM |
Moonrise:12:48 PM Moonset: 03:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-5.6 ° C (21.9°F) |
-1.2 ° C (29.8°F) |
-4 ° C (24.8°F) |
% 56 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:30 PM |
Moonrise:01:29 PM Moonset: 04:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Partly Cloudy |
-6.1 ° C (21.1°F) |
1.7 ° C (35°F) |
-2.3 ° C (27.9°F) |
% 63 | 0% | 2 | Sunrise:07:19 AM Sunset: 04:31 PM |
Moonrise:02:22 PM Moonset: 05:42 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Overcast |
-0.2 ° C (31.6°F) |
4.2 ° C (39.5°F) |
1.1 ° C (33.9°F) |
% 76 | 0% | 1 | Sunrise:07:19 AM Sunset: 04:32 PM |
Moonrise:03:29 PM Moonset: 06:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Sunny |
-0.5 ° C (31.1°F) |
6.4 ° C (43.4°F) |
2 ° C (35.7°F) |
% 84 | 0% | 2 | Sunrise:07:19 AM Sunset: 04:33 PM |
Moonrise:04:46 PM Moonset: 07:51 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Patchy rain nearby |
1.4 ° C (34.4°F) |
9.7 ° C (49.4°F) |
5.5 ° C (41.9°F) |
% 88 | 86% | 2 | Sunrise:07:19 AM Sunset: 04:34 PM |
Moonrise:06:05 PM Moonset: 08:36 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Sunny |
-3 ° C (26.6°F) |
-0.7 ° C (30.7°F) |
-0.8 ° C (30.6°F) |
% 48 | 0% | 2 | Sunrise:07:19 AM Sunset: 04:35 PM |
Moonrise:07:23 PM Moonset: 09:10 AM Moon Phase ( Waning Gibbous ) |
|
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