Weather forecast for 10 daysLummi Island, WA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 55°F
- 46°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphNNW 341°
- Humidity: 80%
- UV index: 2
- Sunrise: 7:36 am PDT
- Sunset: 6:15 pm PDT
- details ▼
Today, in Lummi Island, expect continuous cloudiness with subdued daylight.
Day and night temperatures will subtly differ, ranging from a peak of a refreshing 55.4°F to a low of a chilly 46.4°F.
Expect the maximum temperature to remain consistent with the typical October high of 56.5°F.
Sunrise will be at 7:36 am and sunset at 6:15 pm; the daylight will last for 10h and 40min.
Day and night temperatures will subtly differ, ranging from a peak of a refreshing 55.4°F to a low of a chilly 46.4°F.
Expect the maximum temperature to remain consistent with the typical October high of 56.5°F.
Sunrise will be at 7:36 am and sunset at 6:15 pm; the daylight will last for 10h and 40min.
10-day overview
Daily temperatures
Warmest day: Tuesday 59°C.
Coldest day: Saturday 52°C.
Coldest day: Saturday 52°C.
Chance of precipitation
Highest chance: Saturday 32%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 55°F
- 46°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphNNW 341°
- Humidity: 80%
- UV index: 2
- Sunrise: 7:36 am PDT
- Sunset: 6:15 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 57°F
- 43°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 4mphSW 227°
- Humidity: 80%
- UV index: 2
- Sunrise: 7:37 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 59°F
- 43°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 9mphNNW 333°
- Humidity: 81%
- UV index: 2
- Sunrise: 7:39 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 57°F
- 46°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 3mphNW 323°
- Humidity: 81%
- UV index: 2
- Sunrise: 7:40 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 55°F
- 46°F
AM Clouds / PM Sun
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 7mphSSW 209°
- Humidity: 83%
- UV index: 2
- Sunrise: 7:42 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 54°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphSSW 211°
- Humidity: 77%
- UV index: 2
- Sunrise: 7:43 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 52°F
- 45°F
AM Showers
- Precip. probability: 32%
- Precipitation: 0.04"
- Wind: 7mphNE 43°
- Humidity: 78%
- UV index: 2
- Sunrise: 7:45 am PDT
- Sunset: 6:04 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 54°F
- 43°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0.04"
- Wind: 9mphNNE 27°
- Humidity: 72%
- UV index: 2
- Sunrise: 7:46 am PDT
- Sunset: 6:02 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 54°F
- 45°F
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 6mphNNE 18°
- Humidity: 73%
- UV index: 2
- Sunrise: 7:48 am PDT
- Sunset: 6:00 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 54°F
- 43°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 9mphESE 121°
- Humidity: 78%
- UV index: 2
- Sunrise: 7:50 am PDT
- Sunset: 5:59 pm PDT
- details ▼
During the upcoming ten-day period, primarily overcast and occasionally wet weather is forecasted.
With minimal precipitation of 0.04", rainfall is forecasted for Saturday and next Sunday.
In the upcoming days, the maximum temperature will vary between 51.8°F and 59°F, while the lowest nighttime temperatures will be relatively consistent, as the minimum temperature is expected to range between 42.8°F and 46.4°F.
Expect the warmest day on Tuesday, with temperatures peaking at 59°F; expect the coldest day on Saturday with a high of 51.8°F.
With minimal precipitation of 0.04", rainfall is forecasted for Saturday and next Sunday.
In the upcoming days, the maximum temperature will vary between 51.8°F and 59°F, while the lowest nighttime temperatures will be relatively consistent, as the minimum temperature is expected to range between 42.8°F and 46.4°F.
Expect the warmest day on Tuesday, with temperatures peaking at 59°F; expect the coldest day on Saturday with a high of 51.8°F.
Updated: Oct 18, 2026 @ 10:11:30 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
On Sunday, in Lummi Island, the weather will be mostly cloudy.
Today, the highest temperature in Lummi Island will be 55.4°F, while the lowest temperature will be 46.4°F.
Today, the maximum temperature 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.
Today, the maximum temperature 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 Sunday, in Lummi Island, sunrise will be at 7:36 am and sunset at 6:15 pm (PDT).
Today, the daylight will last for 10h and 40min.
