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

Hazardous Weather Conditions

Current conditions at

Portage, Portage Glacier (PATO)

Lat: 60.78°NLon: 148.83°WElev: 95ft.

Fair

73°F

23°C

Humidity 46%
Wind Speed E 7 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 31 Jul 4:53 pm AKDT
Extended Forecast for

11 Miles ENE Alyeska AK

Heat Advisory until August 1, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 1, 09:00pm

    NOW until 9:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind becoming north around 5 mph after midnight.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58. Northeast wind 5 to 10 mph becoming light north in the afternoon.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Calm wind becoming north around 5 mph in the evening.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 52. Calm wind becoming south around 5 mph in the afternoon.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 41. Southeast wind around 10 mph. Chance of precipitation is 60%.

    Low: 41 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain. The rain could be heavy at times. High near 46. Chance of precipitation is 90%.

    High: 46 °F

    Heavy Rain

  • Monday Night

    Monday Night: Showers. Cloudy, with a low around 40.

    Low: 40 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 56. South wind around 5 mph.
Tonight
Mostly clear, with a low around 47. Calm wind becoming north around 5 mph after midnight.
Saturday
Sunny, with a high near 58. Northeast wind 5 to 10 mph becoming light north in the afternoon.
Saturday Night
Mostly clear, with a low around 47. Calm wind becoming north around 5 mph in the evening.
Sunday
Sunny, with a high near 52. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 41. Southeast wind around 10 mph. Chance of precipitation is 60%.
Monday
Rain. The rain could be heavy at times. High near 46. Chance of precipitation is 90%.
Monday Night
Showers. Cloudy, with a low around 40.
Tuesday
Showers. Cloudy, with a high near 46.
Tuesday Night
Showers. Cloudy, with a low around 40.
Wednesday
Showers. Cloudy, with a high near 47.
Wednesday Night
Showers likely. Cloudy, with a low around 41.
Thursday
A chance of showers. Cloudy, with a high near 49.
Thursday Night
A chance of showers. Cloudy, with a low around 40.
Friday
A chance of showers. Cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Alyeska AK
 61.02°N 148.83°W (Elev. 3957 ft)
Last Update:
1:23 pm AKDT Jul 31, 2026
Forecast Valid:
5pm AKDT Jul 31, 2026-6pm AKDT Aug 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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