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

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Partly Cloudy

83°F

28°C

Humidity 88%
Wind Speed SW 9 mph
Barometer 29.74 in (1006.2 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 5 Aug 8:54 am ChST
Extended Forecast for

2 Miles E Umatac GU

High Surf Advisory August 5, 09:31am until August 8, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory August 5, 09:31am until August 8, 04:00pm

    NOW until 4:00pm Sat

    High Surf Advisory

  • Today

    High: 86 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West wind 10 to 13 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 82. West wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 82 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers and thunderstorms. Partly sunny, with a high near 82. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 82 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. West southwest wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West wind 10 to 13 mph. Chance of precipitation is 40%.
Thursday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 82. West wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms. Partly sunny, with a high near 82. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 79.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 79.
Sunday
A chance of showers. Partly sunny, with a high near 81.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 79.
Monday
A chance of showers. Partly sunny, with a high near 82.
Monday Night
A chance of showers. Mostly cloudy, with a low around 79.
Tuesday
A chance of showers. Partly sunny, with a high near 82. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Umatac GU
 13.31°N 144.69°E
Last Update:
6:06 am ChST Aug 5, 2026
Forecast Valid:
9am ChST Aug 5, 2026-6pm ChST Aug 11, 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