Weather forecast for 10 days
Saint John Harbor, AK

Weather forecast for the weekend

Saturday, Jun 21.

Mostly Sunny
3:58 am

9:48 pm
AKDT
Mostly Sunny
72°F / 52°F
  • Wind: 6mph WNW
  • Humidity: 67%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 6
On Saturday, in Saint John Harbor, sunshine will take center stage, with just faint traces of clouds.
Rainfall is not expected. Temperature fluctuations between an agreeable 71.6°F and a crisp 51.8°F are anticipated.
On Saturday, the forecast high deviates from June's norm and tracks July's average temperature of 59.7°F.
Sunrise will be at 3:58 am and sunset at 9:48 pm; the daylight will last for 17h and 50min.

Sunday, Jun 22.

Mostly Sunny
3:59 am

9:48 pm
AKDT
Mostly Sunny
70°F / 52°F
  • Wind: 6mph SSW
  • Humidity: 67%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 6
On Sunday, in Saint John Harbor, dry and sunny weather is expected throughout the day.
Rainfall is not forecasted. Temperature fluctuations between a pleasant 69.8°F and a crisp 51.8°F are predicted.
The anticipated temperature of 69.8°F resembles July's typical high of 59.7°F more than June's.
Sunrise will be at 3:59 am and sunset at 9:48 pm; the daylight will last for 17h and 50min.

Frequently asked questions

What is the weather forecast for Saint John Harbor for Saturday?
On Saturday, in Saint John Harbor, a bright and mostly cloud-free sky is in store.
Will it rain on Saturday in Saint John Harbor?
No, it will not rain on Saturday.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 71.6°F, while the lowest temperature will be 51.8°F.
What is the weather forecast for Saint John Harbor for Sunday?
On Sunday, a crisp, sunny atmosphere is likely.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 69.8°F, while the minimum temperature will be 51.8°F.
What is the weather forecast for Saint John Harbor for the next ten days?
In Saint John Harbor, a combination of wet, cloud-filled and dry and sunny weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is anticipated on Monday through Thursday in Saint John Harbor. Monday, with minimal precipitation of 0.12", will be the day with the most rainfall.
How warm will it be in the next ten days in Saint John Harbor?
The maximum temperature will range between 57.2°F and 71.6°F, while the minimum temperature will be between 48.2°F and 51.8°F.
What will be the warmest and the coldest days in Saint John Harbor?
With the maximum temperature of 71.6°F, Saturday will be the warmest day. With a maximum temperature of 57.2°F, Wednesday and Thursday will be the coldest days.

Long-term weather forecast

MonJun 16.
  • 59°F
  • 48°F
AM Rain
AM Rain
  • Wind: 14mph SE
  • Humidity: 71%
  • UV index: 5
  • Precip. probability: 99%
  • Precipitation: 0.12"
  • 3:58 am 9:46 pm AKDT
TueJun 17.
  • 59°F
  • 50°F
PM Showers
PM Showers
  • Wind: 7mph E
  • Humidity: 71%
  • UV index: 3
  • Precip. probability: 44%
  • Precipitation: 0.08"
  • 3:58 am 9:47 pm AKDT
WedJun 18.
  • 57°F
  • 48°F
Showers
Showers
  • Wind: 6mph ESE
  • Humidity: 80%
  • UV index: 3
  • Precip. probability: 35%
  • Precipitation: 0.08"
  • 3:58 am 9:47 pm AKDT
ThuJun 19.
  • 57°F
  • 48°F
Showers
Showers
  • Wind: 3mph NE
  • Humidity: 79%
  • UV index: 3
  • Precip. probability: 40%
  • Precipitation: 0.08"
  • 3:58 am 9:48 pm AKDT
FriJun 20.
  • 68°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph NW
  • Humidity: 69%
  • UV index: 5
  • Precip. probability: 11%
  • Precipitation: 0"
  • 3:58 am 9:48 pm AKDT
SatJun 21.
  • 72°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph WNW
  • Humidity: 67%
  • UV index: 6
  • Precip. probability: 6%
  • Precipitation: 0"
  • 3:58 am 9:48 pm AKDT
SunJun 22.
  • 70°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph SSW
  • Humidity: 67%
  • UV index: 6
  • Precip. probability: 5%
  • Precipitation: 0"
  • 3:59 am 9:48 pm AKDT
MonJun 23.
  • 63°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph S
  • Humidity: 72%
  • UV index: 5
  • Precip. probability: 7%
  • Precipitation: 0"
  • 3:59 am 9:48 pm AKDT
TueJun 24.
  • 61°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Humidity: 72%
  • UV index: 5
  • Precip. probability: 15%
  • Precipitation: 0"
  • 3:59 am 9:48 pm AKDT
WedJun 25.
  • 61°F
  • 50°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph SSW
  • Humidity: 74%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0"
  • 4:00 am 9:48 pm AKDT
Looking ahead, conditions suggest a period of wet, dull and bright weather is expected.
Rainfall is anticipated on Monday through Thursday.
There will be a considerable variation in temperature in the coming days. Highs will range from 57.2°F to 71.6°F, while changes in the overnight low will be barely noticeable, as the lowest temperatures will remain in the range of 48.2°F to 51.8°F.
Expect the warmest day on Saturday, with temperatures peaking at 71.6°F; Wednesday and Thursday, with the highest temperature of 57.2°F, will be the coldest days in Saint John Harbor, Alaska.
Updated: Jun 16, 2025 @ 15:23:55 UTC
Published by: Weather U.S. | About Us
Data Sources | |
Weather Forecasting & Climate
Share