Grand Coulee Dam Airport Weather Forecast 15 Days, Weather in GCD Today
Current weather conditions and 15 day weather forecast for Grand Coulee Dam Airport, 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 Grand Coulee Dam Airport
| 06 July 2026 Monday 33.4 ° C / 92.1°F  Sunny |
Feels Like : 27.1 ° C / 80.8°F Humidity : % 11 Pressure : 1010 mb Wind Speed : 11.9 kmph / 7.4 miles from SSW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Grand Coulee Dam Airport, WA, USA
Weather Forecast for next 15 Days for Grand Coulee Dam Airport 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 Grand Coulee Dam Airport, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 06 July 2026 Monday | Sunny |
14.7 ° C (58.5°F) |
33.4 ° C (92.1°F) |
25.7 ° C (78.2°F) |
% 20 | 0% | 8.1 | Sunrise:05:04 AM Sunset: 08:57 PM |
Moonrise:11:54 PM Moonset: 12:18 PM Moon Phase ( Last Quarter ) |
|
| 07 July 2026 Tuesday | Sunny |
12.6 ° C (54.7°F) |
34.7 ° C (94.5°F) |
26.4 ° C (79.6°F) |
% 21 | 1% | 8 | Sunrise:05:05 AM Sunset: 08:56 PM |
Moonrise:Does not rise today Moonset: 01:28 PM Moon Phase ( Last Quarter ) |
|
| 08 July 2026 Wednesday | Sunny |
13.3 ° C (56°F) |
31.4 ° C (88.5°F) |
22.5 ° C (72.5°F) |
% 34 | 1% | 7.6 | Sunrise:05:06 AM Sunset: 08:56 PM |
Moonrise:12:10 AM Moonset: 02:42 PM Moon Phase ( Waning Crescent ) |
|
| 09 July 2026 Thursday | Sunny |
8.6 ° C (47.6°F) |
29.1 ° C (84.5°F) |
19.6 ° C (67.4°F) |
% 35 | 1% | 7.9 | Sunrise:05:07 AM Sunset: 08:55 PM |
Moonrise:12:29 AM Moonset: 03:59 PM Moon Phase ( Waning Crescent ) |
|
| 10 July 2026 Friday | Sunny |
7.7 ° C (45.9°F) |
29.8 ° C (85.6°F) |
19.9 ° C (67.8°F) |
% 40 | 1% | 8.6 | Sunrise:05:08 AM Sunset: 08:55 PM |
Moonrise:12:55 AM Moonset: 05:20 PM Moon Phase ( Waning Crescent ) |
|
| 11 July 2026 Saturday | Sunny |
12.5 ° C (54.4°F) |
32.3 ° C (90.1°F) |
23.2 ° C (73.7°F) |
% 34 | 1% | 8 | Sunrise:05:09 AM Sunset: 08:54 PM |
Moonrise:01:29 AM Moonset: 06:39 PM Moon Phase ( Waning Crescent ) |
|
| 12 July 2026 Sunday | Sunny |
13.2 ° C (55.7°F) |
33.3 ° C (91.9°F) |
23.8 ° C (74.8°F) |
% 29 | 2% | 8 | Sunrise:05:10 AM Sunset: 08:53 PM |
Moonrise:02:18 AM Moonset: 07:49 PM Moon Phase ( New Moon ) |
|
| 13 July 2026 Monday | Sunny |
13.1 ° C (55.6°F) |
34.9 ° C (94.8°F) |
24.6 ° C (76.3°F) |
% 21 | 2% | 8 | Sunrise:05:11 AM Sunset: 08:53 PM |
Moonrise:03:25 AM Moonset: 08:44 PM Moon Phase ( New Moon ) |
|
| 14 July 2026 Tuesday | Sunny |
15 ° C (58.9°F) |
36.5 ° C (97.8°F) |
26.7 ° C (80°F) |
% 19 | 2% | 9 | Sunrise:05:12 AM Sunset: 08:52 PM |
Moonrise:04:47 AM Moonset: 09:24 PM Moon Phase ( New Moon ) |
|
| 15 July 2026 Wednesday | Sunny |
20.5 ° C (68.8°F) |
33.7 ° C (92.7°F) |
26.5 ° C (79.7°F) |
% 35 | 2% | 8 | Sunrise:05:13 AM Sunset: 08:51 PM |
Moonrise:06:17 AM Moonset: 09:54 PM Moon Phase ( New Moon ) |
|
| 16 July 2026 Thursday | Sunny |
16.6 ° C (61.8°F) |
38.3 ° C (101°F) |
27.9 ° C (82.2°F) |
% 44 | 3% | 9 | Sunrise:05:14 AM Sunset: 08:50 PM |
Moonrise:07:47 AM Moonset: 10:16 PM Moon Phase ( Waxing Crescent ) |
|
| 17 July 2026 Friday | Sunny |
16.7 ° C (62.1°F) |
37.9 ° C (100.3°F) |
28.2 ° C (82.7°F) |
% 36 | 1% | 9 | Sunrise:05:15 AM Sunset: 08:49 PM |
Moonrise:09:13 AM Moonset: 10:35 PM Moon Phase ( Waxing Crescent ) |
|
| 18 July 2026 Saturday | Sunny |
13.2 ° C (55.8°F) |
35.6 ° C (96°F) |
24.9 ° C (76.8°F) |
% 29 | 0% | 9 | Sunrise:05:16 AM Sunset: 08:48 PM |
Moonrise:10:35 AM Moonset: 10:52 PM Moon Phase ( Waxing Crescent ) |
|
| 19 July 2026 Sunday | Sunny |
12.9 ° C (55.2°F) |
38.1 ° C (100.6°F) |
26.1 ° C (79°F) |
% 18 | 0% | 9 | Sunrise:05:17 AM Sunset: 08:47 PM |
Moonrise:11:54 AM Moonset: 11:09 PM Moon Phase ( First Quarter ) |
|
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