Weather forecast for todayMercer Island, WA

Weather forecast for today

Current condition 9:31 am PST

  • 48°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 4mphSSE 150°
  • Humidity: 77%
  • Dewpoint: 41°F
  • Pressure: 29.99"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Currently, in Mercer Island, a balance of clouds and sunlight is making for a pleasant atmosphere.
The temperature is a frosty 48.2°F, the real-feel temperature is nearly identical at 46.4°F. The current temperature is at the minimum expected for today.

Monday Nov 9, 2026

  • 55°F
  • 48°F
PM Rain
PM Rain
  • Precip. probability: 100%
  • Precipitation: 0.31"
  • Wind: 9mphSE 131°
  • Humidity: 77%
  • UV index: 1
  • Sunrise: 7:05 am PST
  • Sunset: 4:39 pm PST
  • ▼
Today, rain showers will likely occur in the afternoon.
The chance of rain is high. However, precipitation will be light. Modest temperature shifts from a high of a moderate 55.4°F to a low of a frosty 48.2°F are anticipated.
The higher temperature of 55.4°F is more typical of October than November.
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.
Coldest hour: 10 am 48°C.

Chance of precipitation

Highest chance: 4 pm 98%.

Hourly weather forecast

  • 10 am
  • 48°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSE 134°
  • Humidity: 75%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 11 am
  • 52°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphSE 143°
  • Humidity: 70%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    52°F
Cloudy
Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 3mphSE 130°
  • Humidity: 69%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 1 pm
  • 54°F
  • Feels like:
    54°F
Showers
Showers
  • Precip. probability: 49%
  • Precipitation: 0.04"
  • Wind: 4mphSE 134°
  • Humidity: 72%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 2 pm
  • 54°F
  • Feels like:
    54°F
Light Rain
Light Rain
  • Precip. probability: 82%
  • Precipitation: 0.04"
  • Wind: 4mphE 98°
  • Humidity: 74%
  • Pressure: 29.88"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 3 pm
  • 54°F
  • Feels like:
    52°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.12"
  • Wind: 5mphESE 120°
  • Humidity: 81%
  • Pressure: 29.85"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 4 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 98%
  • Precipitation: 0.08"
  • Wind: 6mphSE 127°
  • Humidity: 84%
  • Pressure: 29.85"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
Sunset: 4:39 pm
  • 5 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 81%
  • Precipitation: 0.08"
  • Wind: 8mphSE 138°
  • Humidity: 84%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 6 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 84%
  • Precipitation: 0.08"
  • Wind: 9mphSSE 160°
  • Humidity: 87%
  • Pressure: 29.85"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 7 pm
  • 54°F
  • Feels like:
    50°F
Showers
Showers
  • Precip. probability: 49%
  • Precipitation: 0.04"
  • Wind: 9mphSSE 169°
  • Humidity: 87%
  • Pressure: 29.88"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphS 182°
  • Humidity: 89%
  • Pressure: 29.91"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 9 pm
  • 54°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphSSW 199°
  • Humidity: 90%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 9mphS 185°
  • Humidity: 91%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 52°F
  • Feels like:
    48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 7mphS 178°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Mercer Island, a combination of cloud-filled and rain-filled weather is predicted.
Rain is predicted from 1 pm to 7 pm. With light precipitation of 0.12", most rainfall is expected at 3 pm.
The temperature will be between the lowest temperature of 48.2°F and the highest temperature of 53.6°F. The warmest part of the day will be from noon to 3 pm, and from 7 pm to 9 pm.
The maximum temperature will align more closely with October's average high of 58.6°F than with November's 48.6°F. Forecasts show a temperature also more in line with October's average minimum of 44.2°F rather than the November average of 39°F.
Updated: Nov 9, 2026 @ 17:31:39 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 9:31 am PST is 48.2°F.

On Monday, expect afternoon showers with a chance of rain during the later part of the day.

Light precipitation of 0.31" is anticipated. The possibility of rainfall is high at 100%.

Today, the highest temperature will be 55.4°F, while the lowest temperature will be 48.2°F.
The highest temperature will be a couple of degrees higher than the average maximum 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.