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

Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Partly Cloudy

80°F

27°C

Humidity 87%
Wind Speed E 7 mph
Barometer 29.87 in (1010.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 7 Jan 12:54 am ChST
Extended Forecast for

Agana GU

High Surf Advisory January 7, 01:59am until January 7, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory January 7, 01:59am until January 7, 04:00pm

    NOW until 4:00pm Wed

    High Surf Advisory

  • Overnight

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 87. East northeast wind 10 to 17 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 77. East northeast wind 11 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers. Partly sunny, with a high near 87. East northeast wind 11 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 76. Northeast wind 9 to 13 mph.

    Low: 76 °F

    Isolated
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 77. East northeast wind around 10 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers. Partly sunny, with a high near 87. East northeast wind 10 to 17 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 77. East northeast wind 11 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday
Scattered showers. Partly sunny, with a high near 87. East northeast wind 11 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers. Partly cloudy, with a low around 76. Northeast wind 9 to 13 mph.
Friday
Mostly sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 76.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agana GU
 13.47°N 144.74°E
Last Update:
6:05 pm ChST Jan 6, 2026
Forecast Valid:
1am ChST Jan 7, 2026-6pm ChST Jan 13, 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