Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Fair

84°F

29°C

Humidity 65%
Wind Speed NE 13 mph
Barometer 29.85 in (1010.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 28 Dec 4:54 pm ChST
Extended Forecast for

Agana GU

High Surf Advisory until December 29, 04:00am
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory until December 29, 04:00am

    NOW until 4:00am Mon

    High Surf Advisory

  • This Afternoon

    High: 85 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 77. East northeast wind 8 to 11 mph.

    Low: 77 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers.  Mostly sunny, with a high near 86. East northeast wind 8 to 13 mph.

    High: 86 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Isolated showers.  Partly cloudy, with a low around 77. East northeast wind 8 to 13 mph.

    Low: 77 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 86. East northeast wind 9 to 14 mph, with gusts as high as 18 mph.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers.  Partly cloudy, with a low around 77.

    Low: 77 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers.  Mostly sunny, with a high near 85.

    High: 85 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a high near 85. East northeast wind around 13 mph.
Tonight
Isolated showers. Partly cloudy, with a low around 77. East northeast wind 8 to 11 mph.
Monday
Isolated showers. Mostly sunny, with a high near 86. East northeast wind 8 to 13 mph.
Monday Night
Isolated showers. Partly cloudy, with a low around 77. East northeast wind 8 to 13 mph.
Tuesday
Isolated showers. Mostly sunny, with a high near 86. East northeast wind 9 to 14 mph, with gusts as high as 18 mph.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 77.
Wednesday
Isolated showers. Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 77.
New Year's Day
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 77.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Agana GU
 13.47°N 144.74°E
4:44 pm ChST Dec 28, 2025
5pm ChST Dec 28, 2025-6pm ChST Jan 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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