Weather forecast for 10 daysGustavus, AK

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 48°F
  • 43°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 1.1"
  • Wind: 16mphSE 127°
  • Humidity: 88%
  • UV index: 0
  • Sunrise: 7:44 am AKDT
  • Sunset: 5:51 pm AKDT
  • ▼
On Saturday, October 17, steady rainfall will bring wet and overcast conditions.
Substantial precipitation is expected for today. Temperature values will show minor divergence, extending from a brisk 48.2°F to a chilly 42.8°F.
Today, the forecasted high of 48.2°F is more in line with September's average of 51.1°F than October's 42.3°F.
Sunrise will be at 7:44 am and sunset at 5:51 pm; the daylight will last for 10h and 7min.

Sunday Oct 18, 2026

  • 46°F
  • 41°F
Showers
Showers
  • Precip. probability: 64%
  • Precipitation: 0.2"
  • Wind: 7mphSE 137°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 7:46 am AKDT
  • Sunset: 5:49 pm AKDT
  • ▼
Tomorrow, on Sunday, October 18, expect showers with brief dry periods, especially during the afternoon.
The chance of rainfall is high. However, precipitation will be light. A daytime temperature reaching up to a frosty 46.4°F will subtly contrast with a nighttime low of a cold 41°F.
The temperature is anticipated to be moderately higher than the standard October peak of 42.3°F.
Sunrise will be at 7:46 am and sunset at 5:49 pm; tomorrow's daylight will last for 10h and 2min.

10-day overview

Daily temperatures

Warmest day: Tuesday 50°C.
Coldest period: Wednesday - Monday 45°C.

Chance of precipitation

Highest chance: 100%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 48°F
  • 43°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 1.1"
  • Wind: 16mphSE 127°
  • Humidity: 88%
  • UV index: 0
  • Sunrise: 7:44 am AKDT
  • Sunset: 5:51 pm AKDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 46°F
  • 41°F
Showers
Showers
  • Precip. probability: 64%
  • Precipitation: 0.2"
  • Wind: 7mphSE 137°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 7:46 am AKDT
  • Sunset: 5:49 pm AKDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 46°F
  • 43°F
Rain
Rain
  • Precip. probability: 89%
  • Precipitation: 1.02"
  • Wind: 11mphSE 143°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 7:49 am AKDT
  • Sunset: 5:46 pm AKDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 50°F
  • 41°F
Rain / Wind
Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 1.89"
  • Wind: 20mphSE 133°
  • Humidity: 91%
  • UV index: 0
  • Sunrise: 7:51 am AKDT
  • Sunset: 5:43 pm AKDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 45°F
  • 39°F
Rain
Rain
  • Precip. probability: 86%
  • Precipitation: 0.47"
  • Wind: 11mphSSE 155°
  • Humidity: 89%
  • UV index: 0
  • Sunrise: 7:53 am AKDT
  • Sunset: 5:41 pm AKDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 45°F
  • 37°F
Showers
Showers
  • Precip. probability: 67%
  • Precipitation: 0.2"
  • Wind: 8mphESE 114°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 7:56 am AKDT
  • Sunset: 5:38 pm AKDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 45°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 7mphNNE 32°
  • Humidity: 80%
  • UV index: 1
  • Sunrise: 7:58 am AKDT
  • Sunset: 5:35 pm AKDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 45°F
  • 36°F
PM Showers
PM Showers
  • Precip. probability: 33%
  • Precipitation: 0.16"
  • Wind: 6mphENE 71°
  • Humidity: 77%
  • UV index: 1
  • Sunrise: 8:00 am AKDT
  • Sunset: 5:33 pm AKDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 45°F
  • 37°F
Light Rain
Light Rain
  • Precip. probability: 60%
  • Precipitation: 0.43"
  • Wind: 8mphESE 112°
  • Humidity: 85%
  • UV index: 1
  • Sunrise: 8:03 am AKDT
  • Sunset: 5:30 pm AKDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 45°F
  • 37°F
Showers
Showers
  • Precip. probability: 60%
  • Precipitation: 0.28"
  • Wind: 6mphE 87°
  • Humidity: 88%
  • UV index: 1
  • Sunrise: 8:05 am AKDT
  • Sunset: 5:28 pm AKDT
  • ▼
Over the next ten days, primarily rainy and occasionally cloud-filled weather is predicted.
Rainfall is anticipated on Saturday through Thursday, next Saturday through next Monday.
Temperature differences will be unnoticeable during the next few days. The maximum temperature will vary between 44.6°F and 50°F, while the forecast minimum temperature falls between 33.8°F and 42.8°F.
With the highest temperature of 50°F, Tuesday will be the warmest day; with a maximum temperature of 44.6°F, Wednesday through next Monday will be the coldest days in Gustavus.
Updated: Oct 17, 2026 @ 15:09:18 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, expect widespread rain, bringing wet conditions throughout the day.

Yes. With a probability of 100%, substantial precipitation of 1.1" is anticipated.

Today, the highest temperature will be 48.2°F, while the lowest temperature will be 42.8°F.
The highest temperature will be moderately higher than the average maximum of 42.3°F in October. The lowest temperature will be also slightly warmer than the average low of 38.5°F.

On Saturday, in Gustavus, sunrise will be at 7:44 am and sunset at 5:51 pm (AKDT).

Today, the daylight will last for 10h and 7min.

On Sunday, in Gustavus, expect light rain showers throughout the day, with a break in the rain later in the day.

With a probability of 64%, light precipitation of 0.2" is predicted.

Tomorrow, the highest temperature will be 46.4°F, while the lowest temperature will be 41°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Gustavus, sunrise will be at 7:46 am and sunset at 5:49 pm (AKDT).

In Gustavus, tomorrow, there will be 10h and 2min of daylight.