Weather forecast for 10 daysNikiski, AK

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 43°F
  • 34°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0.2"
  • Wind: 4mphE 98°
  • Humidity: 71%
  • UV index: 1
  • Sunrise: 8:55 am AKDT
  • Sunset: 6:45 pm AKDT
  • ▼
Tomorrow, in Nikiski, gray skies will define the day.
The chance of rain is low, and light precipitation is expected. The highest daytime temperature will reach a chilly 42.8°F, creating a slight contrast with the predicted nighttime low of a wintry 33.8°F.
Expect the maximum temperature to remain consistent with the typical October high of 43.2°F.
Sunrise will be at 8:55 am and sunset at 6:45 pm; tomorrow's daylight will last for 9h and 50min.

10-day overview

Daily temperatures

Maximum temperature: 43°C.
Coldest period: Thursday - Friday 37°C.

Chance of precipitation

Highest chance: Monday 96%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 30°F
Clouds Early / Clearing Late
Clouds Early / Clearing Late
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 5mphNE 39°
  • Humidity: 79%
  • UV index: 0
  • Sunrise: 8:52 am AKDT
  • Sunset: 6:48 pm AKDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 43°F
  • 34°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0.2"
  • Wind: 4mphE 98°
  • Humidity: 71%
  • UV index: 1
  • Sunrise: 8:55 am AKDT
  • Sunset: 6:45 pm AKDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 39°F
  • 34°F
Rain
Rain
  • Precip. probability: 96%
  • Precipitation: 0.59"
  • Wind: 12mphNNE 22°
  • Humidity: 92%
  • UV index: 0
  • Sunrise: 8:57 am AKDT
  • Sunset: 6:42 pm AKDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 43°F
  • 32°F
AM Showers
AM Showers
  • Precip. probability: 51%
  • Precipitation: 0.12"
  • Wind: 12mphNW 317°
  • Humidity: 81%
  • UV index: 1
  • Sunrise: 9:00 am AKDT
  • Sunset: 6:39 pm AKDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 39°F
  • 27°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 9mphN 9°
  • Humidity: 67%
  • UV index: 1
  • Sunrise: 9:02 am AKDT
  • Sunset: 6:36 pm AKDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 37°F
  • 27°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 7mphNNE 25°
  • Humidity: 68%
  • UV index: 1
  • Sunrise: 9:05 am AKDT
  • Sunset: 6:33 pm AKDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 37°F
  • 32°F
PM Rain / Snow
PM Rain / Snow
  • Precip. probability: 37%
  • Precipitation: 0.31"
  • Wind: 7mphNE 49°
  • Humidity: 77%
  • UV index: 1
  • Sunrise: 9:08 am AKDT
  • Sunset: 6:30 pm AKDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 43°F
  • 34°F
Rain / Snow
Rain / Snow
  • Precip. probability: 70%
  • Precipitation: 0.55"
  • Wind: 11mphENE 77°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 9:10 am AKDT
  • Sunset: 6:27 pm AKDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 43°F
  • 34°F
Showers
Showers
  • Precip. probability: 54%
  • Precipitation: 0.08"
  • Wind: 9mphENE 60°
  • Humidity: 87%
  • UV index: 1
  • Sunrise: 9:13 am AKDT
  • Sunset: 6:25 pm AKDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 41°F
  • 34°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 9mphNNE 17°
  • Humidity: 81%
  • UV index: 0
  • Sunrise: 9:15 am AKDT
  • Sunset: 6:22 pm AKDT
  • ▼
The next ten days will bring unstable conditions, and a mix of dull, rain-soaked, snow-filled and clear weather is forecasted.
Rain is predicted for Monday, Tuesday and next Sunday.
Snow is forecasted for Friday and next Saturday. With intense precipitation of 0.59", most snowfall is expected on Monday.
The temperature shift across days will be subtle in the upcoming days. The maximum temperature will vary between 37.4°F and 42.8°F, while nighttime temperatures are expected to vary from 26.6°F to 33.8°F.
The warmest days will be Sunday, Tuesday, next Saturday and Sunday, with a maximum of 42.8°F; with a maximum temperature of 37.4°F, Thursday and Friday will be the coldest days.
Updated: Oct 18, 2026 @ 05:05:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, intermittent cloud layers may allow brief light, but overall it stays overcast.

Light precipitation of 0.2" is forecasted. The chance of rainfall is low at 7%.

Tomorrow, the highest temperature will be 42.8°F, while the lowest temperature will be 33.8°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be a couple of degrees lower than the average low temperature.

On Sunday, in Nikiski, sunrise will be at 8:55 am and sunset at 6:45 pm (AKDT).

Tomorrow, the daylight will last for 9h and 50min.