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

Heavy Mountain Snow across Portions of the Rockies and Intermountain West; Mainly Tranquil Weather for the East

A storm will move across the Intermountain West and Rockies through Tuesday. Heavy snow is forecast for the higher terrain with rain for lower elevations. Meanwhile, large area of high pressure for the East will keep the weather tranquil with moderating temperatures. Later this week, a more significant storm is possible for the West, especially for northern California. Read More >

Current conditions at

Portage, Portage Glacier (PATO)

Lat: 60.78°NLon: 148.83°WElev: 95ft.

Overcast

37°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 29.57 in (1001.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Oct 11:53 pm AKDT
Extended Forecast for

2 Miles ESE Alyeska AK

  • Overnight

    Overnight: Snow. Low around 23. East wind around 25 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.

    Snow

    Low: 23 °F

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times. High near 31. East wind 30 to 35 mph increasing to 35 to 40 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 7 to 10 inches possible.

    Heavy Snow

    High: 31 °F

  • Tuesday
    Night

    Tuesday Night: Snow. The snow could be heavy at times. Low around 27. East wind 45 to 50 mph increasing to 55 to 60 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 5 to 8 inches possible.

    Heavy Snow

    Low: 27 °F

  • Wednesday

    Wednesday: Snow. High near 30. Southeast wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Chance of precipitation is 90%.

    Snow

    High: 30 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of snow. Cloudy, with a low around 26. Calm wind becoming northwest around 5 mph in the evening.

    Chance Snow

    Low: 26 °F

  • Thursday

    Thursday: Snow, mainly after 4pm. High near 30. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    Chance Snow
    then Snow

    High: 30 °F

  • Thursday
    Night

    Thursday Night: Snow. Low around 23. Chance of precipitation is 80%.

    Snow

    Low: 23 °F

  • Friday

    Friday: Snow likely. Cloudy, with a high near 31.

    Snow Likely

    High: 31 °F

  • Friday
    Night

    Friday Night: Snow likely. Cloudy, with a low around 26.

    Snow Likely

    Low: 26 °F

Detailed Forecast

Overnight
Snow. Low around 23. East wind around 25 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.
Tuesday
Snow. The snow could be heavy at times. High near 31. East wind 30 to 35 mph increasing to 35 to 40 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 7 to 10 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 27. East wind 45 to 50 mph increasing to 55 to 60 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 5 to 8 inches possible.
Wednesday
Snow. High near 30. Southeast wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Chance of precipitation is 90%.
Wednesday Night
A 40 percent chance of snow. Cloudy, with a low around 26. Calm wind becoming northwest around 5 mph in the evening.
Thursday
Snow, mainly after 4pm. High near 30. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Thursday Night
Snow. Low around 23. Chance of precipitation is 80%.
Friday
Snow likely. Cloudy, with a high near 31.
Friday Night
Snow likely. Cloudy, with a low around 26.
Saturday
Snow likely. Cloudy, with a high near 31.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 23.
Sunday
A chance of snow. Mostly cloudy, with a high near 29.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 20.
Monday
A chance of snow. Mostly cloudy, with a high near 26.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
2 Miles ESE Alyeska AK
 60.94°N 149.06°W (Elev. 3586 ft)
Last Update:
7:39 pm AKDT Oct 18, 2021
Forecast Valid:
1am AKDT Oct 19, 2021-6pm AKDT Oct 25, 2021
 
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