Weather forecast for todayMercer Island, WA

Weather forecast for today

Current condition 12:33 pm PST

  • 54°F
  • Feels like:
    54°F
Rain
Rain
  • Precipitation: 0"
  • Wind: 2mphSE 140°
  • Humidity: 69%
  • Dewpoint: 43°F
  • Pressure: 29.93"Hg
  • Visibility: 7mi
  • UV index: 1
  • ▼
Currently, rainfall is steady and continuous.
The temperature is a cool 53.6°F. The current temperature is the maximum expected temperature for today.

Monday Nov 9, 2026

  • 54°F
  • 50°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.31"
  • Wind: 9mphSE 126°
  • Humidity: 76%
  • UV index: 1
  • Sunrise: 7:05 am PST
  • Sunset: 4:39 pm PST
  • ▼
On Monday, in Mercer Island, expect persistent rain that may last through the evening as well.
The chance of precipitation for today is high. However, the rain will be light. A daytime temperature reaching up to a fresh 53.6°F will subtly contrast with a nighttime low of a crisp 50°F.
The forecasted temperature is slightly warmer than November's regular maximum of 48.6°F.
Sunrise was at 7:05 am and sunset will be at 4:39 pm; the daylight will last for 9h and 35min.

Hourly overview

Hourly temperatures

Maximum temperature: 54°C.
Minimum temperature: 52°C.

Chance of precipitation

Highest chance: 3 pm - 6 pm 100%.

Hourly weather forecast

  • 1 pm
  • 54°F
  • Feels like:
    54°F
Light Rain
Light Rain
  • Precip. probability: 70%
  • Precipitation: 0.04"
  • Wind: 2mphSE 132°
  • Humidity: 69%
  • Pressure: 29.91"Hg
  • Visibility: 5mi
  • UV index: 1
  • ▼
  • 2 pm
  • 54°F
  • Feels like:
    54°F
Rain
Rain
  • Precip. probability: 77%
  • Precipitation: 0.04"
  • Wind: 3mphESE 102°
  • Humidity: 70%
  • Pressure: 29.88"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 3 pm
  • 54°F
  • Feels like:
    52°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.08"
  • Wind: 4mphESE 117°
  • Humidity: 76%
  • Pressure: 29.85"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 4 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.12"
  • Wind: 6mphESE 118°
  • Humidity: 84%
  • Pressure: 29.85"Hg
  • Visibility: 2mi
  • UV index: 0
  • ▼
Sunset: 4:39 pm
  • 5 pm
  • 52°F
  • Feels like:
    50°F
Light Rain
Light Rain
  • Precip. probability: 100%
  • Precipitation: 0.04"
  • Wind: 7mphSE 128°
  • Humidity: 84%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 6 pm
  • 54°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.08"
  • Wind: 8mphSSE 163°
  • Humidity: 83%
  • Pressure: 29.88"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 7 pm
  • 54°F
  • Feels like:
    52°F
Rain
Rain
  • Precip. probability: 69%
  • Precipitation: 0.04"
  • Wind: 9mphSSE 167°
  • Humidity: 84%
  • Pressure: 29.91"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 10mphS 182°
  • Humidity: 86%
  • Pressure: 29.91"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 9 pm
  • 54°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 10mphSSW 197°
  • Humidity: 89%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 9mphS 183°
  • Humidity: 92%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 52°F
  • Feels like:
    48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 7mphS 175°
  • Humidity: 91%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Mercer Island, a combination of rain-filled and overcast weather is anticipated.
Rain is expected from 1 pm to 7 pm. With light precipitation of 0.12", most rainfall is expected at 4 pm.
The temperature will vary between the highest temperature of 53.6°F and the lowest temperature of 51.8°F.
The highest temperature will be a couple of degrees higher than November's average maximum of 48.6°F. The minimum temperature will be more in line with October's average low of 44.2°F than November's typical value of 39°F.
Updated: Nov 9, 2026 @ 20:33:25 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (12:33 pm PST) it is 53.6°F in Mercer Island.

On Monday, persistent showers will keep conditions wet.

Light precipitation of 0.31" is predicted. The likelihood of rainfall is high at 100%.

Today, the maximum temperature will be 53.6°F, while the minimum temperature will be 50°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 48.6°F in November. The lowest temperature will be uncommonly higher than the average low of 39°F.

On Monday, in Mercer Island, sunrise was at 7:05 am and sunset will be at 4:39 pm (PST).

In Mercer Island, the length of the day today will be 9h and 35min.