Issaquah Weather Forecast 15 Days, Weather in Issaquah Today
Current weather conditions and 15 day weather forecast for Issaquah, 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 Issaquah
| 05 December 2025 Friday 8.3 ° C / 46.9°F  Light rain |
Feels Like : 8.4 ° C / 47°F Humidity : % 97 Pressure : 1020 mb Wind Speed : 3.6 kmph / 2.2 miles from S  Visibility : 4.8 km Precipitation (rainfall) : 0.72 mm Cloud (%) : 100 |
15 day weather forecast for Issaquah, WA, USA
Weather Forecast for next 15 Days for Issaquah 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 Issaquah, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Moderate rain |
7.8 ° C (46°F) |
13.8 ° C (56.8°F) |
9.6 ° C (49.3°F) |
% 92 | 89% | 0 | Sunrise:07:41 AM Sunset: 04:17 PM |
Moonrise:04:41 PM Moonset: 09:06 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday |  Overcast |
7.3 ° C (45.1°F) |
9 ° C (48.2°F) |
8.2 ° C (46.8°F) |
% 92 | 0% | 0.1 | Sunrise:07:42 AM Sunset: 04:17 PM |
Moonrise:05:57 PM Moonset: 10:08 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Patchy rain nearby |
7 ° C (44.6°F) |
9.5 ° C (49.1°F) |
8.4 ° C (47.2°F) |
% 88 | 81% | 0 | Sunrise:07:43 AM Sunset: 04:17 PM |
Moonrise:07:21 PM Moonset: 10:53 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Moderate rain |
5.3 ° C (41.5°F) |
12.1 ° C (53.9°F) |
8.2 ° C (46.8°F) |
% 88 | 86% | 0 | Sunrise:07:44 AM Sunset: 04:17 PM |
Moonrise:08:43 PM Moonset: 11:24 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday | Patchy rain nearby |
7.1 ° C (44.8°F) |
9.6 ° C (49.3°F) |
8.2 ° C (46.8°F) |
% 85 | 89% | 0 | Sunrise:07:45 AM Sunset: 04:17 PM |
Moonrise:10:02 PM Moonset: 11:48 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Patchy rain nearby |
2.4 ° C (36.4°F) |
7.7 ° C (45.8°F) |
5.6 ° C (42.1°F) |
% 85 | 88% | 2 | Sunrise:07:46 AM Sunset: 04:17 PM |
Moonrise:11:16 PM Moonset: 12:06 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Patchy rain nearby |
4.5 ° C (40.1°F) |
6.3 ° C (43.3°F) |
5.5 ° C (41.9°F) |
% 93 | 85% | 2 | Sunrise:07:47 AM Sunset: 04:17 PM |
Moonrise:No moonrise Moonset: 12:21 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Patchy rain nearby |
2.6 ° C (36.6°F) |
4.9 ° C (40.8°F) |
3.6 ° C (38.4°F) |
% 89 | 85% | 1 | Sunrise:07:48 AM Sunset: 04:17 PM |
Moonrise:12:25 AM Moonset: 12:35 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Patchy rain nearby |
-1.9 ° C (28.6°F) |
4.6 ° C (40.3°F) |
1.6 ° C (34.9°F) |
% 88 | 83% | 1 | Sunrise:07:48 AM Sunset: 04:17 PM |
Moonrise:01:33 AM Moonset: 12:49 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday |  Moderate or heavy snow showers |
-4.5 ° C (23.9°F) |
3.4 ° C (38.1°F) |
-0.9 ° C (30.4°F) |
% 83 | 86% | 1 | Sunrise:07:49 AM Sunset: 04:17 PM |
Moonrise:02:40 AM Moonset: 01:05 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Patchy moderate snow |
-4.8 ° C (23.4°F) |
1.4 ° C (34.6°F) |
-1.9 ° C (28.5°F) |
% 89 | 86% | 1 | Sunrise:07:50 AM Sunset: 04:17 PM |
Moonrise:03:48 AM Moonset: 01:23 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Light freezing rain |
-5.1 ° C (22.8°F) |
1.7 ° C (35.1°F) |
-1.8 ° C (28.8°F) |
% 87 | 77% | 1 | Sunrise:07:51 AM Sunset: 04:17 PM |
Moonrise:04:56 AM Moonset: 01:45 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Heavy snow |
-4.3 ° C (24.2°F) |
-0.4 ° C (31.3°F) |
-2.4 ° C (27.7°F) |
% 92 | 76% | 1 | Sunrise:07:51 AM Sunset: 04:18 PM |
Moonrise:06:05 AM Moonset: 02:12 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Mist |
-10.1 ° C (13.9°F) |
-1.5 ° C (29.3°F) |
-6.6 ° C (20°F) |
% 92 | 0% | 1 | Sunrise:07:52 AM Sunset: 04:18 PM |
Moonrise:07:11 AM Moonset: 02:49 PM Moon Phase ( Waning Crescent ) |
|
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