Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Mostly Cloudy

77°F

25°C

Humidity 77%
Wind Speed NW 13 G 25 mph
Barometer 29.77 in (1007.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 15 Mar 2:54 am ChST
Extended Forecast for

Hagatna GU

High Surf Advisory March 15, 02:57am until March 16, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory March 15, 02:57am until March 16, 04:00pm

    NOW until 4:00pm Mon

    High Surf Advisory

  • Overnight

    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

Overnight
Isolated showers. Mostly cloudy, with a low around 77. Northwest wind 8 to 10 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:
Hagatna GU
 13.47°N 144.76°E
6:06 pm ChST Mar 14, 2026
2am ChST Mar 15, 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