Weekly Weather Forecast for Mercer Island, Washington, United States

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Overall WeatherTemperaturePressure
Clear Sky78.03°F/25.57°C1017 hPa
Wind SpeedWind DirectionClouds
2.68 MPH 307 Degrees 1%
Humidity PercentageSunrise TimeSunset Time
48
Current Local Time
Moonrise Time Moonset Time
11:11:11
   MST
Ultraviolet Index (UV Index)
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Weather forecast for 11-August-2026

Duration from Weather Summary Temperature Minimum
Temperature
Maximum
Temperature
Atmospheric Pressure
in hPa
Humidity Clouds Wind Speed Wind
Direction
5 PMClear Sky78.03°F 25.57°C78.03°F 25.57°C78.31°F 25.73°C10174814.337
8 PMClear Sky75.96°F 24.42°C71.8°F 22.11°C75.96°F 24.42°C10174923.513
11 PMClear Sky69.13°F 20.63°C64.69°F 18.16°C69.13°F 20.63°C101764102.0149

Weather forecast for 12-August-2026

Duration from Weather Summary Temperature Minimum
Temperature
Maximum
Temperature
Atmospheric Pressure
in hPa
Humidity Clouds Wind Speed Wind
Direction
2 AMScattered Clouds60.01°F 15.56°C60.01°F 15.56°C60.01°F 15.56°C101778411.09100
5 AMScattered Clouds57.49°F 14.16°C57.49°F 14.16°C57.49°F 14.16°C101784410.3978
8 AMFew Clouds60.48°F 15.82°C60.48°F 15.82°C60.48°F 15.82°C101775160.39161
11 AMScattered Clouds64.69°F 18.16°C64.69°F 18.16°C64.69°F 18.16°C101663322.02237
2 PMBroken Clouds71.37°F 21.87°C71.37°F 21.87°C71.37°F 21.87°C101447661.81211
5 PMBroken Clouds72.48°F 22.49°C72.48°F 22.49°C72.48°F 22.49°C101347622.5284
8 PMFew Clouds69.67°F 20.93°C69.67°F 20.93°C69.67°F 20.93°C101254172.07355
11 PMClear Sky65.5°F 18.61°C65.5°F 18.61°C65.5°F 18.61°C10126961.0418

Weather forecast for 13-August-2026

Duration from Weather Summary Temperature Minimum
Temperature
Maximum
Temperature
Atmospheric Pressure
in hPa
Humidity Clouds Wind Speed Wind
Direction
2 AMClear Sky60.48°F 15.82°C60.48°F 15.82°C60.48°F 15.82°C10128001173
5 AMClear Sky56.7°F 13.72°C56.7°F 13.72°C56.7°F 13.72°C10138801.72186
8 AMClear Sky61.54°F 16.41°C61.54°F 16.41°C61.54°F 16.41°C10137701.38195
11 AMClear Sky75.99°F 24.44°C75.99°F 24.44°C75.99°F 24.44°C10124700.69314
2 PMClear Sky83.25°F 28.47°C83.25°F 28.47°C83.25°F 28.47°C10103502.01332
5 PMClear Sky82.85°F 28.25°C82.85°F 28.25°C82.85°F 28.25°C10093403.61334
8 PMClear Sky72.88°F 22.71°C72.88°F 22.71°C72.88°F 22.71°C10095012.3350
11 PMClear Sky63.82°F 17.68°C63.82°F 17.68°C63.82°F 17.68°C10117202.04352

Weather forecast for 14-August-2026

Duration from Weather Summary Temperature Minimum
Temperature
Maximum
Temperature
Atmospheric Pressure
in hPa
Humidity Clouds Wind Speed Wind
Direction
2 AMBroken Clouds63.95°F 17.75°C63.95°F 17.75°C63.95°F 17.75°C101173840.3221
5 AMBroken Clouds59.25°F 15.14°C59.25°F 15.14°C59.25°F 15.14°C101385511.1224
8 AMClear Sky62.44°F 16.91°C62.44°F 16.91°C62.44°F 16.91°C10147761.64210
11 AMScattered Clouds75.38°F 24.1°C75.38°F 24.1°C75.38°F 24.1°C101449301.31217
2 PMScattered Clouds86.54°F 30.3°C86.54°F 30.3°C86.54°F 30.3°C101232490.69297
5 PMFew Clouds86.85°F 30.47°C86.85°F 30.47°C86.85°F 30.47°C101131242.24346
8 PMClear Sky73°F 22.78°C73°F 22.78°C73°F 22.78°C10125223.1330
11 PMClear Sky65.32°F 18.51°C65.32°F 18.51°C65.32°F 18.51°C10156650.99194

Weather forecast for 15-August-2026

Duration from Weather Summary Temperature Minimum
Temperature
Maximum
Temperature
Atmospheric Pressure
in hPa
Humidity Clouds Wind Speed Wind
Direction
2 AMClear Sky60.28°F 15.71°C60.28°F 15.71°C60.28°F 15.71°C10167711.18232
5 AMClear Sky57.92°F 14.4°C57.92°F 14.4°C57.92°F 14.4°C10168301.22211
8 AMClear Sky62.13°F 16.74°C62.13°F 16.74°C62.13°F 16.74°C10177101.36217
11 AMScattered Clouds71.06°F 21.7°C71.06°F 21.7°C71.06°F 21.7°C101752461.58223
2 PMOvercast Clouds76.46°F 24.7°C76.46°F 24.7°C76.46°F 24.7°C1016421001.51183
5 PMOvercast Clouds84.06°F 28.92°C84.06°F 28.92°C84.06°F 28.92°C101532870.98189
8 PMClear Sky72.19°F 22.33°C72.19°F 22.33°C72.19°F 22.33°C10155531.95339
11 PMClear Sky63.46°F 17.48°C63.46°F 17.48°C63.46°F 17.48°C10177030.87358

Weather forecast for 16-August-2026

Duration from Weather Summary Temperature Minimum
Temperature
Maximum
Temperature
Atmospheric Pressure
in hPa
Humidity Clouds Wind Speed Wind
Direction
2 AMBroken Clouds60.96°F 16.09°C60.96°F 16.09°C60.96°F 16.09°C101873570.34156
5 AMBroken Clouds59.14°F 15.08°C59.14°F 15.08°C59.14°F 15.08°C101877790.48211
8 AMOvercast Clouds62.47°F 16.93°C62.47°F 16.93°C62.47°F 16.93°C101969990.4187
11 AMOvercast Clouds74.84°F 23.8°C74.84°F 23.8°C74.84°F 23.8°C101845990.94304
2 PMOvercast Clouds83.08°F 28.38°C83.08°F 28.38°C83.08°F 28.38°C101735992.06326

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