Weather forecast for tomorrowGustavus, AK

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 46°F
  • 41°F
Rain
Rain
  • Precip. probability: 82%
  • Precipitation: 0.31"
  • Wind: 9mphSE 137°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 7:46 am AKDT
  • Sunset: 5:49 pm AKDT
  • ▼
Tomorrow, expect steady rainfall to continue through the day.
The chance of rainfall is high. However, precipitation will be light. The highest daytime temperature will reach a frosty 46.4°F, creating a slight contrast with the anticipated nighttime low of a wintry 41°F.
The top temperature will be a couple of degrees higher than the average high in October 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.

Hourly overview

Hourly temperatures

Warmest period: 12 pm - 3 pm 46°C.
Coldest hour: 9 pm 43°C.

Chance of precipitation

Highest chance: 3 am 84%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    41°F
Rain
Rain
  • Precip. probability: 78%
  • Precipitation: 0.04"
  • Wind: 8mphSE 145°
  • Humidity: 93%
  • Pressure: 29.8"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    41°F
Rain
Rain
  • Precip. probability: 85%
  • Precipitation: 0.04"
  • Wind: 8mphSSE 150°
  • Humidity: 94%
  • Pressure: 29.83"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 4 am
  • 45°F
  • Feels like:
    41°F
Rain
Rain
  • Precip. probability: 89%
  • Precipitation: 0.04"
  • Wind: 8mphSE 141°
  • Humidity: 93%
  • Pressure: 29.83"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 6 am
  • 45°F
  • Feels like:
    39°F
Light Rain
Light Rain
  • Precip. probability: 70%
  • Precipitation: 0.04"
  • Wind: 8mphSE 140°
  • Humidity: 91%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Sunrise: 7:46 am
  • 8 am
  • 45°F
  • Feels like:
    41°F
Light Rain
Light Rain
  • Precip. probability: 77%
  • Precipitation: 0.04"
  • Wind: 6mphSE 143°
  • Humidity: 90%
  • Pressure: 29.88"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 10 am
  • 45°F
  • Feels like:
    41°F
Light Rain
Light Rain
  • Precip. probability: 65%
  • Precipitation: 0.04"
  • Wind: 8mphSE 131°
  • Humidity: 88%
  • Pressure: 29.91"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 12 pm
  • 46°F
  • Feels like:
    41°F
Showers
Showers
  • Precip. probability: 57%
  • Precipitation: 0.04"
  • Wind: 9mphSE 136°
  • Humidity: 85%
  • Pressure: 29.94"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 2 pm
  • 46°F
  • Feels like:
    43°F
Showers
Showers
  • Precip. probability: 56%
  • Precipitation: 0.04"
  • Wind: 8mphSE 138°
  • Humidity: 84%
  • Pressure: 29.94"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 4 pm
  • 46°F
  • Feels like:
    43°F
Showers
Showers
  • Precip. probability: 59%
  • Precipitation: 0.04"
  • Wind: 6mphSE 143°
  • Humidity: 85%
  • Pressure: 29.94"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Sunset: 5:49 pm
  • 6 pm
  • 45°F
  • Feels like:
    41°F
Light Rain
Light Rain
  • Precip. probability: 61%
  • Precipitation: 0.04"
  • Wind: 6mphSE 137°
  • Humidity: 89%
  • Pressure: 29.97"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 8 pm
  • 43°F
  • Feels like:
    41°F
Showers
Showers
  • Precip. probability: 42%
  • Precipitation: 0.04"
  • Wind: 4mphSE 143°
  • Humidity: 93%
  • Pressure: 29.97"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    41°F
Showers
Showers
  • Precip. probability: 54%
  • Precipitation: 0.04"
  • Wind: 5mphSSE 161°
  • Humidity: 91%
  • Pressure: 30"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Tomorrow, rainy conditions are anticipated.
Rainfall is expected throughout the entire day, with precipitation varying from a minimal 0.04" to a maximum of 0.08". With light precipitation of 0.08", most rainfall is expected at 1 am.
The temperature difference throughout the day will be indistinguishable, with the lowest temperature of 42.8°F and the highest temperature of 46.4°F. The warmest part of the day will be from 11 am to 5 pm.
The forecasted high will be a few degrees higher than the typical October maximum of 42.3°F. Tomorrow, the lowest temperature will be also similar to October's usual minimum.
Updated: Oct 17, 2026 @ 23:06:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Gustavus, showers will linger, keeping conditions wet for most of the day.

Light precipitation of 0.31" is forecasted. The likelihood of rainfall is high at 82%.

Tomorrow, the highest temperature will be 46.4°F, while the lowest temperature will be 41°F.
The highest temperature will be a couple of degrees higher than the average maximum of 42.3°F in October. Tomorrow, the lowest temperature 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).

Tomorrow, the daylight will last for 10h and 2min.