Weather forecast for todayMercer Island, WA

Weather forecast for today

Current condition 6:04 am PST

  • 39°F
  • Feels like:
    37°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 3mphSE 130°
  • Humidity: 93%
  • Dewpoint: 37°F
  • Pressure: 30.08"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Mercer Island, currently, perfect visibility under a vast, clear sky.
The temperature is a wintry 39.2°F, with the feels-like temperature closely matching at 37.4°F. The current temperature is relatively far from the maximum of 57.2°F forecasted for today.

Wednesday Nov 4, 2026

  • 57°F
  • 48°F
PM Showers
PM Showers
  • Precip. probability: 55%
  • Precipitation: 0.12"
  • Wind: 7mphSSW 192°
  • Humidity: 78%
  • UV index: 1
  • Sunrise: 6:57 am PST
  • Sunset: 4:46 pm PST
  • ▼
Today, expect brief rain showers to develop during the afternoon.
Minimal precipitation is expected. Temperature shifts will be minor, from a high of a moderate 57.2°F to a low of a frosty 48.2°F.
Meteorological data shows 57.2°F is more characteristic of October's climate profile than November's.
Sunrise will be at 6:57 am and sunset at 4:46 pm; the daylight will last for 9h and 49min.

Hourly overview

Hourly temperatures

Warmest period: 1 pm - 3 pm 55°C.
Coldest hour: 7 am 39°C.

Chance of precipitation

Highest chance: 9 pm 85%.

Hourly weather forecast

  • 7 am
  • 39°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphSSE 148°
  • Humidity: 94%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 41°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphSSE 153°
  • Humidity: 90%
  • Pressure: 30.06"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 9 am
  • 45°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSE 165°
  • Humidity: 88%
  • Pressure: 30.06"Hg
  • Visibility: 9mi
  • UV index: 1
  • ▼
  • 10 am
  • 48°F
  • Feels like:
    46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSW 192°
  • Humidity: 82%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 11 am
  • 50°F
  • Feels like:
    48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSW 209°
  • Humidity: 78%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 52°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 205°
  • Humidity: 72%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 1 pm
  • 55°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 206°
  • Humidity: 68%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 207°
  • Humidity: 66%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 3 pm
  • 55°F
  • Feels like:
    54°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 200°
  • Humidity: 66%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 pm
  • 55°F
  • Feels like:
    54°F
Cloudy
Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphSSW 208°
  • Humidity: 66%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 4:46 pm
  • 5 pm
  • 54°F
  • Feels like:
    54°F
Cloudy
Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 6mphSSW 203°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 54°F
  • Feels like:
    52°F
Showers
Showers
  • Precip. probability: 55%
  • Precipitation: 0.04"
  • Wind: 6mphSW 216°
  • Humidity: 74%
  • Pressure: 30"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 7 pm
  • 52°F
  • Feels like:
    50°F
Light Rain
Light Rain
  • Precip. probability: 75%
  • Precipitation: 0.04"
  • Wind: 6mphSSW 200°
  • Humidity: 84%
  • Pressure: 30.03"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 8 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 88%
  • Precipitation: 0.04"
  • Wind: 6mphS 180°
  • Humidity: 89%
  • Pressure: 30.03"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 9 pm
  • 50°F
  • Feels like:
    48°F
Light Rain
Light Rain
  • Precip. probability: 85%
  • Precipitation: 0.04"
  • Wind: 7mphS 169°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    48°F
Rain
Rain
  • Precip. probability: 81%
  • Precipitation: 0.04"
  • Wind: 7mphSSE 165°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 11 pm
  • 50°F
  • Feels like:
    48°F
Cloudy
Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 8mphS 173°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Mercer Island, a combination of cloudy, rain-filled and sun-filled weather is forecasted.
With minimal precipitation of 0.04", rainfall is predicted from 6 pm to 10 pm.
The temperature will vary between the highest temperature of 55.4°F and the lowest temperature of 39.2°F. The warmest part of the day will be from 1 pm to 4 pm.
The forecasted maximum is more in line with October's typical high of 58.6°F than the average for November. The minimum temperature will be also more resembling October's average low of 44.2°F than November's typical value of 39°F.
Updated: Nov 4, 2026 @ 14:04:19 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 6:04 am PST is 39.2°F.

Today, on-and-off showers may develop in the afternoon.

There is a high likelihood of rainfall, but precipitation will be minimal.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 48.2°F.
The highest temperature will be slightly warmer than the average maximum of 48.6°F in November. The lowest temperature will be significantly higher than the average low of 39°F.

On Wednesday, in Mercer Island, sunrise will be at 6:57 am and sunset at 4:46 pm (PST).

In Mercer Island, the length of the day today will be 9h and 49min.