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.

A Few Clouds

85°F

29°C

Humidity 70%
Wind Speed E 9 mph
Barometer 29.91 in (1011.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 28 Dec 9:54 am ChST
Extended Forecast for

3 Miles S Agat GU

  • Today

    Today: Isolated showers.  Mostly sunny, with a high near 84. East northeast wind around 14 mph, with gusts as high as 18 mph.

    High: 84 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers.  Mostly cloudy, with a low around 75. East northeast wind around 14 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers.  Mostly sunny, with a high near 84. East northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Isolated showers.  Partly cloudy, with a low around 75. East wind around 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 84. East wind 15 to 17 mph, with gusts as high as 23 mph.

    High: 84 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Isolated showers. Mostly sunny, with a high near 84. East northeast wind around 14 mph, with gusts as high as 18 mph.
Tonight
Isolated showers. Mostly cloudy, with a low around 75. East northeast wind around 14 mph, with gusts as high as 20 mph.
Monday
Isolated showers. Mostly sunny, with a high near 84. East northeast wind around 15 mph, with gusts as high as 20 mph.
Monday Night
Isolated showers. Partly cloudy, with a low around 75. East wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Isolated showers. Mostly sunny, with a high near 84. East wind 15 to 17 mph, with gusts as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 75.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 75.
New Year's Day
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Agat GU
 13.33°N 144.67°E
6:05 am ChST Dec 28, 2025
10am ChST Dec 28, 2025-6pm ChST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database