Newcastle Weather Forecast 15 Days, Weather in Newcastle Today
Current weather conditions and 15 day weather forecast for Newcastle, Maine, 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 Newcastle
| 17 December 2025 Wednesday 1.1 ° C / 34°F  Clear |
Feels Like : -4.5 ° C / 23.9°F Humidity : % 79 Pressure : 1010 mb Wind Speed : 24.8 kmph / 15.4 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Newcastle, ME, USA
Weather Forecast for next 15 Days for Newcastle 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 Newcastle, Maine 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 17 December 2025 Wednesday | Sunny |
-5 ° C (23°F) |
7.8 ° C (46°F) |
1.5 ° C (34.7°F) |
% 71 | 0% | 0.2 | Sunrise:07:07 AM Sunset: 04:00 PM |
Moonrise:05:09 AM Moonset: 01:53 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Partly Cloudy |
-2.3 ° C (27.9°F) |
4.5 ° C (40.1°F) |
2 ° C (35.6°F) |
% 76 | 0% | 0.2 | Sunrise:07:08 AM Sunset: 04:01 PM |
Moonrise:06:13 AM Moonset: 02:30 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy rain |
5.1 ° C (41.2°F) |
11 ° C (51.8°F) |
8.8 ° C (47.9°F) |
% 97 | 85% | 0 | Sunrise:07:09 AM Sunset: 04:01 PM |
Moonrise:07:12 AM Moonset: 03:17 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Light freezing rain |
-6.1 ° C (21.1°F) |
-1.4 ° C (29.4°F) |
-2.6 ° C (27.4°F) |
% 53 | 60% | 0.2 | Sunrise:07:09 AM Sunset: 04:02 PM |
Moonrise:08:04 AM Moonset: 04:13 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Patchy rain nearby |
-1.5 ° C (29.4°F) |
3.8 ° C (38.9°F) |
1.2 ° C (34.2°F) |
% 73 | 86% | 0 | Sunrise:07:10 AM Sunset: 04:02 PM |
Moonrise:08:47 AM Moonset: 05:16 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-7.3 ° C (18.8°F) |
-3.6 ° C (25.5°F) |
-4.6 ° C (23.7°F) |
% 54 | 0% | 2 | Sunrise:07:10 AM Sunset: 04:03 PM |
Moonrise:09:22 AM Moonset: 06:24 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Patchy moderate snow |
-7.4 ° C (18.7°F) |
1.1 ° C (34°F) |
-2.5 ° C (27.4°F) |
% 63 | 88% | 1 | Sunrise:07:11 AM Sunset: 04:03 PM |
Moonrise:09:50 AM Moonset: 07:34 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
-3.5 ° C (25.8°F) |
4.9 ° C (40.8°F) |
1.7 ° C (35.1°F) |
% 78 | 84% | 1 | Sunrise:07:11 AM Sunset: 04:04 PM |
Moonrise:10:13 AM Moonset: 08:43 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Moderate or heavy snow showers |
-4.4 ° C (24.1°F) |
1.4 ° C (34.4°F) |
-0.7 ° C (30.8°F) |
% 81 | 85% | 1 | Sunrise:07:11 AM Sunset: 04:04 PM |
Moonrise:10:34 AM Moonset: 09:54 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
-9 ° C (15.7°F) |
-1.3 ° C (29.7°F) |
-4 ° C (24.8°F) |
% 64 | 0% | 2 | Sunrise:07:12 AM Sunset: 04:05 PM |
Moonrise:10:53 AM Moonset: 11:04 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
-11.7 ° C (10.9°F) |
-7.4 ° C (18.6°F) |
-9.2 ° C (15.4°F) |
% 58 | 0% | 2 | Sunrise:07:12 AM Sunset: 04:06 PM |
Moonrise:11:12 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Heavy snow |
-13.1 ° C (8.4°F) |
-4.9 ° C (23.2°F) |
-8.2 ° C (17.2°F) |
% 80 | 69% | 1 | Sunrise:07:12 AM Sunset: 04:06 PM |
Moonrise:11:33 AM Moonset: 12:17 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-14.6 ° C (5.7°F) |
-8.3 ° C (17°F) |
-11.9 ° C (10.5°F) |
% 65 | 0% | 2 | Sunrise:07:12 AM Sunset: 04:07 PM |
Moonrise:11:57 AM Moonset: 01:34 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Patchy moderate snow |
-10.2 ° C (13.7°F) |
-3.1 ° C (26.3°F) |
-7.4 ° C (18.7°F) |
% 81 | 89% | 1 | Sunrise:07:13 AM Sunset: 04:08 PM |
Moonrise:12:26 PM Moonset: 02:54 AM Moon Phase ( Waxing Gibbous ) |
|
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