Weather in Mercer Island for a week

+16 °CClear northern

Wind: light air, northern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 77%

Cloudiness: 22%

Visibility: 100%

morning6:00 Variably cloudy

+15 °CVariably cloudy northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 82%

Cloudiness: 100%

Visibility: 100%

+23 °CCloudy northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 54%

Cloudiness: 100%

Visibility: 100%

afternoon12:00 Clear

+27 °CClear northwest

Wind: light breeze, northwest

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 37%

Cloudiness: 54%

Visibility: 99%

+29 °CClear northwest

Wind: gentle breeze, northwest

speed: 14 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 30%

Cloudiness: 13%

Visibility: 99%

evening18:00 Partly cloudy

+27 °CPartly cloudy northern

Wind: gentle breeze, northern

speed: 14 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1003 hPa

Relative humidity: 33%

Cloudiness: 27%

Visibility: 99%

+21 °CCloudy northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 58%

Cloudiness: 100%

Visibility: 100%

Sunrise 05:44, Sunset 20:46, Ultraviolet index: 7,8 (High), more ...

Moonrise 12:25, Moonset 23:02, Moon phase: waxing crescent

Geomagnetic Field: Active

Thursday, July 31, 2025

night0:00 Variably cloudy

+18 °CVariably cloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 74%

Cloudiness: 96%

Visibility: 100%

+16 °CVariably cloudy western

Wind: light air, western

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 84%

Cloudiness: 99%

Visibility: 100%

morning6:00 Cloudy

+15 °CCloudy southwest

Wind: light air, southwest

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 89%

Cloudiness: 99%

Visibility: 100%

+21 °COvercast southern

Wind: light breeze, southern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 77%

Cloudiness: 99%

Visibility: 100%

afternoon12:00 Cloudy

+26 °CCloudy southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 58%

Cloudiness: 78%

Visibility: 100%

+29 °CClear southwest

Wind: light breeze, southwest

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 46%

Cloudiness: 63%

Visibility: 99%

evening18:00 Variably cloudy

+26 °CVariably cloudy western

Wind: light breeze, western

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 50%

Cloudiness: 83%

Visibility: 99%

+21 °CCloudy southwest

Wind: light breeze, southwest

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 73%

Cloudiness: 100%

Visibility: 100%

Sunrise 05:46, Sunset 20:44, Ultraviolet index: 7,2 (High), more ...

Moonrise 13:33, Moonset 23:19, Moon phase: waxing crescent

Geomagnetic Field: Unstable

Friday, August 1, 2025

night0:00 Cloudy

+18 °CCloudy southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 78%

Cloudiness: 100%

Visibility: 100%

+17 °CCloudy southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 81%

Cloudiness: 99%

Visibility: 100%

morning6:00 Overcast

+16 °COvercast southern

Wind: light breeze, southern

speed: 7 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 85%

Cloudiness: 100%

Visibility: 100%

+19 °COvercast southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 78%

Cloudiness: 100%

Visibility: 100%

afternoon12:00 Overcast

+23 °COvercast southern

Wind: light breeze, southern

speed: 7 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 67%

Cloudiness: 100%

Visibility: 100%

+25 °CCloudy southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 58%

Cloudiness: 100%

Visibility: 99%

evening18:00 Cloudy

+25 °CCloudy northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 62%

Cloudiness: 100%

Visibility: 100%

+19 °CCloudy northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 81%

Cloudiness: 100%

Visibility: 100%

Sunrise 05:47, Sunset 20:43, Ultraviolet index: 7,4 (High), more ...

Moonrise 14:42, Moonset 23:39, Moon phase: in its first quarter

Geomagnetic Field: Quiet

Saturday, August 2, 2025

night0:00 Cloudy

+17 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 87%

Cloudiness: 100%

Visibility: 100%

+16 °CCloudy western

Wind: light air, western

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 89%

Cloudiness: 100%

Visibility: 100%

morning6:00 Overcast

+15 °COvercast southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 88%

Cloudiness: 100%

Visibility: 100%

+20 °COvercast southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 80%

Cloudiness: 100%

Visibility: 100%

afternoon12:00 Overcast

+25 °COvercast southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 67%

Cloudiness: 98%

Visibility: 99%

+26 °CPartly cloudy western

Wind: light breeze, western

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 58%

Cloudiness: 98%

Visibility: 99%

evening18:00 Partly cloudy

+23 °CPartly cloudy northwest

Wind: gentle breeze, northwest

speed: 18 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 63%

Cloudiness: 21%

Visibility: 99%

+18 °CVariably cloudy northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 74%

Cloudiness: 64%

Visibility: 100%

Sunrise 05:48, Sunset 20:41, Ultraviolet index: 7,8 (High), more ...

Moonrise 15:51, Moonset --:--, Moon phase: waxing gibbous

Geomagnetic Field: Quiet

Sunday, August 3, 2025

night0:00 Overcast

+16 °COvercast western

Wind: light breeze, western

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 78%

Cloudiness: 87%

Visibility: 100%

+15 °COvercast southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 79%

Cloudiness: 94%

Visibility: 100%

morning6:00 Overcast

+14 °COvercast southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 80%

Cloudiness: 98%

Visibility: 100%

+18 °COvercast southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 71%

Cloudiness: 100%

Visibility: 100%

afternoon12:00 Cloudy

+22 °CCloudy southwest

Wind: light breeze, southwest

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 60%

Cloudiness: 94%

Visibility: 99%

+24 °CCloudy western

Wind: light breeze, western

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 53%

Cloudiness: 77%

Visibility: 99%

evening18:00 Clear

+21 °CClear northwest

Wind: gentle breeze, northwest

speed: 14 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 57%

Cloudiness: 75%

Visibility: 100%

+18 °CVariably cloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 68%

Cloudiness: 65%

Visibility: 100%

Sunrise 05:50, Sunset 20:40, more ...

Moonrise 16:59, Moonset 00:05, Moon phase: waxing gibbous

Geomagnetic Field: Active

Monday, August 4, 2025

night0:00 Cloudy

+16 °CCloudy northwest

Wind: light breeze, northwest

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 79%

Cloudiness: 76%

Visibility: 100%

+14 °CCloudy southern

Wind: light breeze, southern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 84%

Cloudiness: 96%

Visibility: 100%

morning6:00 Overcast

+14 °COvercast southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 81%

Cloudiness: 91%

Visibility: 100%

+16 °CCloudy southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 73%

Cloudiness: 93%

Visibility: 100%

afternoon12:00 Cloudy

+19 °CCloudy southwest

Wind: light breeze, southwest

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 60%

Cloudiness: 89%

Visibility: 100%

+22 °CCloudy southwest

Wind: light breeze, southwest

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 51%

Cloudiness: 81%

Visibility: 100%

evening18:00 Cloudy

+21 °CCloudy southwest

Wind: light breeze, southwest

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 54%

Cloudiness: 73%

Visibility: 100%

+19 °CCloudy southwest

Wind: light air, southwest

speed: 4 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 69%

Cloudiness: 86%

Visibility: 100%

Sunrise 05:51, Sunset 20:38, more ...

Moonrise 18:02, Moonset 00:40, Moon phase: waxing gibbous

Geomagnetic Field: Active

Tuesday, August 5, 2025

night0:00 Cloudy

+16 °CCloudy southern

Wind: light breeze, southern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 81%

Cloudiness: 73%

Visibility: 100%

+14 °COvercast southern

Wind: light breeze, southern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 85%

Cloudiness: 86%

Visibility: 100%

morning6:00 Cloudy

+15 °CCloudy southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 82%

Cloudiness: 93%

Visibility: 100%

+18 °CCloudy southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 67%

Cloudiness: 95%

Visibility: 100%

afternoon12:00 Cloudy

+22 °CCloudy southern

Wind: light breeze, southern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1003 hPa

Relative humidity: 55%

Cloudiness: 93%

Visibility: 100%

+23 °CCloudy southwest

Wind: light breeze, southwest

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1001 hPa

Relative humidity: 50%

Cloudiness: 92%

Visibility: 100%

evening18:00 Cloudy

+22 °CCloudy western

Wind: light breeze, western

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1000 hPa

Relative humidity: 59%

Cloudiness: 100%

Visibility: 100%

+21 °CCloudy northwest

Wind: light breeze, northwest

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1000 hPa

Relative humidity: 69%

Cloudiness: 97%

Visibility: 100%

Sunrise 05:52, Sunset 20:37, more ...

Moonrise 18:56, Moonset 01:25, Moon phase: waxing gibbous