National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portage, Portage Glacier (PATO)

Lat: 60.78°NLon: 148.83°WElev: 95ft.

Overcast

53°F

12°C

Humidity 86%
Wind Speed Vrbl 3 mph
Barometer 30.00 in (1015.8 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 21 Aug 8:53 am AKDT
Extended Forecast for

Alyeska AK

  • Today

    Today: Scattered showers. Partly sunny, with a high near 57. Southeast wind around 5 mph. Chance of precipitation is 50%.

    High: 57 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 4am. Increasing clouds, with a low around 47. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 47 °F

    Scattered
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely before 10am, then rain after 10am. High near 53. East wind 5 to 10 mph. Chance of precipitation is 90%.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely before 10pm, then scattered showers after 10pm. Cloudy, with a low around 46. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 46 °F

    Rain Likely

  • Sunday

    Sunday: Partly sunny, with a high near 62. Calm wind becoming northwest around 5 mph in the morning.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 52.

    Low: 52 °F

    Cloudy

  • Tuesday

    Tuesday: A chance of showers after 10am. Cloudy, with a high near 62.

    High: 62 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers. Partly sunny, with a high near 57. Southeast wind around 5 mph. Chance of precipitation is 50%.
Tonight
Showers likely, mainly after 4am. Increasing clouds, with a low around 47. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
Showers likely before 10am, then rain after 10am. High near 53. East wind 5 to 10 mph. Chance of precipitation is 90%.
Saturday Night
Rain likely before 10pm, then scattered showers after 10pm. Cloudy, with a low around 46. East wind around 5 mph becoming calm. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 62. Calm wind becoming northwest around 5 mph in the morning.
Sunday Night
Partly cloudy, with a low around 46. Calm wind.
Monday
Partly sunny, with a high near 66.
Monday Night
Cloudy, with a low around 52.
Tuesday
A chance of showers after 10am. Cloudy, with a high near 62.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 52.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Thursday
A chance of showers. Mostly cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alyeska AK
 60.97°N 149.11°W (Elev. 197 ft)
Last Update:
3:37 am AKDT Aug 21, 2026
Forecast Valid:
9am AKDT Aug 21, 2026-6pm AKDT Aug 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation