Marietta-Alderwood Weather Forecast 15 Days, Weather in Marietta-Alderwood Today
Current weather conditions and 15 day weather forecast for Marietta-Alderwood, Washington, 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 Marietta-Alderwood
| 17 December 2025 Wednesday 7.2 ° C / 45°F  Partly cloudy |
Feels Like : 2.3 ° C / 36.1°F Humidity : % 76 Pressure : 994 mb Wind Speed : 39.2 kmph / 24.4 miles from WSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15 day weather forecast for Marietta-Alderwood, WA, USA
Weather Forecast for next 15 Days for Marietta-Alderwood 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 Marietta-Alderwood, Washington 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 |  Moderate rain |
4.6 ° C (40.3°F) |
8.5 ° C (47.3°F) |
6.2 ° C (43.2°F) |
% 82 | 86% | 0.1 | Sunrise:07:58 AM Sunset: 04:14 PM |
Moonrise:06:12 AM Moonset: 02:08 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Heavy rain |
4.2 ° C (39.6°F) |
6.9 ° C (44.4°F) |
5.4 ° C (41.8°F) |
% 87 | 89% | 0 | Sunrise:07:59 AM Sunset: 04:15 PM |
Moonrise:07:19 AM Moonset: 02:43 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Moderate rain |
3.6 ° C (38.5°F) |
5.7 ° C (42.2°F) |
4 ° C (39.2°F) |
% 85 | 89% | 0.1 | Sunrise:07:59 AM Sunset: 04:15 PM |
Moonrise:08:19 AM Moonset: 03:30 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Patchy rain nearby |
2.2 ° C (36°F) |
5.7 ° C (42.3°F) |
4.5 ° C (40.1°F) |
% 90 | 88% | 0.1 | Sunrise:08:00 AM Sunset: 04:15 PM |
Moonrise:09:09 AM Moonset: 04:28 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Patchy rain nearby |
2.5 ° C (36.6°F) |
9.5 ° C (49°F) |
5.1 ° C (41.2°F) |
% 88 | 86% | 0 | Sunrise:08:00 AM Sunset: 04:16 PM |
Moonrise:09:48 AM Moonset: 05:36 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Moderate rain |
2.9 ° C (37.2°F) |
5.4 ° C (41.7°F) |
4.6 ° C (40.2°F) |
% 94 | 81% | 1 | Sunrise:08:01 AM Sunset: 04:16 PM |
Moonrise:10:18 AM Moonset: 06:48 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
4.2 ° C (39.6°F) |
4.8 ° C (40.7°F) |
4.7 ° C (40.4°F) |
% 90 | 79% | 1 | Sunrise:08:01 AM Sunset: 04:17 PM |
Moonrise:10:41 AM Moonset: 08:03 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
2.2 ° C (35.9°F) |
5.6 ° C (42.1°F) |
3.6 ° C (38.5°F) |
% 85 | 86% | 1 | Sunrise:08:02 AM Sunset: 04:18 PM |
Moonrise:10:59 AM Moonset: 09:18 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Partly Cloudy |
1.6 ° C (34.8°F) |
6.1 ° C (43°F) |
3.1 ° C (37.6°F) |
% 77 | 0% | 2 | Sunrise:08:02 AM Sunset: 04:18 PM |
Moonrise:11:15 AM Moonset: 10:32 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
1.4 ° C (34.5°F) |
6.2 ° C (43.1°F) |
3.6 ° C (38.4°F) |
% 76 | 89% | 1 | Sunrise:08:02 AM Sunset: 04:19 PM |
Moonrise:11:30 AM Moonset: 11:48 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Patchy rain nearby |
2.6 ° C (36.7°F) |
5.2 ° C (41.4°F) |
3.9 ° C (39°F) |
% 90 | 88% | 1 | Sunrise:08:02 AM Sunset: 04:20 PM |
Moonrise:11:44 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
2.9 ° C (37.2°F) |
5 ° C (40.9°F) |
4 ° C (39.2°F) |
% 88 | 87% | 1 | Sunrise:08:03 AM Sunset: 04:21 PM |
Moonrise:12:00 PM Moonset: 01:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
3.2 ° C (37.8°F) |
5.2 ° C (41.4°F) |
3.9 ° C (39.1°F) |
% 86 | 82% | 1 | Sunrise:08:03 AM Sunset: 04:21 PM |
Moonrise:12:20 PM Moonset: 02:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Cloudy |
-1.5 ° C (29.4°F) |
4.8 ° C (40.6°F) |
2.2 ° C (36°F) |
% 82 | 0% | 1 | Sunrise:08:03 AM Sunset: 04:22 PM |
Moonrise:12:46 PM Moonset: 03:55 AM Moon Phase ( Waxing Gibbous ) |
|
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