Weather forecast for todayMercer Island, WA
Weather forecast for today
Current condition 6:20 am PDT
- 57°F
- Feels like:55°F
Cloudy
- Precipitation: 0"
- Wind: 8mphS 180°
- Humidity: 87%
- Dewpoint: 54°F
- Pressure: 30.11"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
In Mercer Island, currently, cloudy skies are casting a soft, muted light over the area.
The temperature is a moderate 57.2°F, the feels-like temperature is nearly identical at 55.4°F. The current temperature is nearly at the maximum of today's predicted 59°F.
The temperature is a moderate 57.2°F, the feels-like temperature is nearly identical at 55.4°F. The current temperature is nearly at the maximum of today's predicted 59°F.
Saturday Oct 17, 2026
- 59°F
- 41°F
AM Clouds / PM Sun
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 8mphNE 40°
- Humidity: 75%
- UV index: 2
- Sunrise: 7:31 am PDT
- Sunset: 6:17 pm PDT
- details ▼
Today, on Saturday, October 17, patchy morning clouds will clear as the afternoon brings plenty of sunshine.
Temperatures are predicted to range from a maximum of a moderate 59°F to a minimum of an icy 41°F.
Today, the anticipated peak temperature is expected to mirror October's average high of 58.6°F.
Sunrise will be at 7:31 am and sunset at 6:17 pm; the daylight will last for 10h and 46min.
Temperatures are predicted to range from a maximum of a moderate 59°F to a minimum of an icy 41°F.
Today, the anticipated peak temperature is expected to mirror October's average high of 58.6°F.
Sunrise will be at 7:31 am and sunset at 6:17 pm; the daylight will last for 10h and 46min.
Hourly overview
Hourly temperatures
Warmest period: 1 pm - 5 pm 59°C.
Coldest hour: 11 pm 52°C.
Coldest hour: 11 pm 52°C.
Chance of precipitation
Highest chance: 9 am 21%.
Hourly weather forecast
- 7 am
- 57°F
- Feels like:55°F
Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 8mphSSW 203°
- Humidity: 88%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:31 am
- 8 am
- 57°F
- Feels like:55°F
Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 6mphSSW 206°
- Humidity: 86%
- Pressure: 30.15"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 9 am
- 57°F
- Feels like:55°F
Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 5mphSSW 208°
- Humidity: 86%
- Pressure: 30.15"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 am
- 57°F
- Feels like:57°F
Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 4mphNNW 344°
- Humidity: 83%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 am
- 57°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 5mphNE 53°
- Humidity: 81%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Mostly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 6mphNE 54°
- Humidity: 77%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 1 pm
- 59°F
- Feels like:57°F
Mostly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 7mphNE 48°
- Humidity: 73%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 59°F
- Feels like:57°F
Mostly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 7mphNE 37°
- Humidity: 70%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 3 pm
- 59°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 7mphNE 35°
- Humidity: 65%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 59°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNNE 25°
- Humidity: 62%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 59°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNNE 22°
- Humidity: 59%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 57°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphNNE 22°
- Humidity: 62%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:17 pm
- 7 pm
- 55°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphNNE 26°
- Humidity: 63%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 55°F
- Feels like:54°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphNNE 23°
- Humidity: 66%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 54°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphNNE 20°
- Humidity: 69%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 54°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphNNE 31°
- Humidity: 70%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 52°F
- Feels like:50°F
Mostly Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphNNE 33°
- Humidity: 73%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Mercer Island, cloudy skies are expected.
The temperature will vary between the lowest temperature of 51.8°F and the highest temperature of 59°F. The warmest part of the day will be from 1 pm to 5 pm.
Today, the high temperature will be close to October's average. The expected low will be also similar to the average minimum in October, which is 44.2°F.
The temperature will vary between the lowest temperature of 51.8°F and the highest temperature of 59°F. The warmest part of the day will be from 1 pm to 5 pm.
Today, the high temperature will be close to October's average. The expected low will be also similar to the average minimum in October, which is 44.2°F.
Updated: Oct 17, 2026 @ 13:20:12 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Currently (6:20 am PDT) it is 57.2°F in Mercer Island.
On Saturday, in Mercer Island, the day will start gloomy and cloudy, but expect a transition to sunny conditions later on.
Today, the maximum temperature will be 59°F, while the minimum temperature will be 41°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature today will be also in line with the average low temperature.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature today will be also in line with the average low temperature.
On Saturday, in Mercer Island, sunrise will be at 7:31 am and sunset at 6:17 pm (PDT).
Today, the daylight will last for 10h and 46min.
Mercer Island, Washington, USA
- en: Mercer Island, Washington, USA
- es: Mercer Island, Washington, EE.UU.
- hr: Merser Ajland, Vašington, SAD
- mk: Merser Ajland, Vašington, SAD
- sr: Merser Ajland, Vašington, SAD
- zh: 默瑟岛, 华盛顿, 美国
- Latitude: 47.570655°
- Longitude: -122.222067°
- Elevation: 338 ft
- Current time: 6:46am PDT
- Sunrise: 7:31 am PDT
- Sunset: 6:17 pm PDT
- Timezone: America/Los_Angeles
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