Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Overcast

78°F

26°C

Humidity 79%
Wind Speed N 17 G 28 mph
Barometer 29.76 in (1006.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 Mar 6:54 pm ChST
Extended Forecast for

Dededo GU

High Surf Advisory March 14, 07:28pm until March 16, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory March 14, 07:28pm until March 16, 04:00pm

    NOW until 4:00pm Mon

    High Surf Advisory

  • Tonight

    Low: 77 °F

    Isolated
    Showers

  • Sunday

    Sunday: Isolated showers.  Mostly sunny, with a high near 87. North northwest wind 9 to 14 mph, with gusts as high as 18 mph.

    High: 87 °F

    Isolated
    Showers

  • Sunday Night

    Sunday Night: Isolated showers.  Partly cloudy, with a low around 77. North wind 7 to 13 mph.

    Low: 77 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers.  Mostly sunny, with a high near 87. North wind 7 to 13 mph.

    High: 87 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Isolated showers.  Partly cloudy, with a low around 78. North northeast wind 8 to 13 mph.

    Low: 78 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 86.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Tonight
Isolated showers. Mostly cloudy, with a low around 77. North northwest wind 9 to 17 mph, with gusts as high as 22 mph.
Sunday
Isolated showers. Mostly sunny, with a high near 87. North northwest wind 9 to 14 mph, with gusts as high as 18 mph.
Sunday Night
Isolated showers. Partly cloudy, with a low around 77. North wind 7 to 13 mph.
Monday
Isolated showers. Mostly sunny, with a high near 87. North wind 7 to 13 mph.
Monday Night
Isolated showers. Partly cloudy, with a low around 78. North northeast wind 8 to 13 mph.
Tuesday
Isolated showers. Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 76.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Dededo GU
 13.52°N 144.83°E
6:06 pm ChST Mar 14, 2026
7pm ChST Mar 14, 2026-6pm ChST Mar 21, 2026
 
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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