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.

Mostly Cloudy

82°F

28°C

Humidity 90%
Wind Speed S 6 mph
Barometer 29.84 in (1009.7 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 23 Aug 6:54 pm ChST
Extended Forecast for

Agana Heights GU

High Surf Advisory August 23, 07:40pm until August 24, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory August 23, 07:40pm until August 24, 04:00pm

    NOW until 4:00pm Mon

    High Surf Advisory

  • Tonight

    Low: 77 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 85. South southwest wind 10 to 13 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. South southwest wind 7 to 10 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 85. Southwest wind 8 to 11 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. West southwest wind 5 to 9 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 77. South southwest wind 8 to 13 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 85. South southwest wind 10 to 13 mph. Chance of precipitation is 70%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. South southwest wind 7 to 10 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 85. Southwest wind 8 to 11 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. West southwest wind 5 to 9 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 78.
Thursday
A chance of showers. Partly sunny, with a high near 84.
Thursday Night
Showers likely. Mostly cloudy, with a low around 78.
Friday
Showers likely. Cloudy, with a high near 85.
Friday Night
A chance of showers. Mostly cloudy, with a low around 78.
Saturday
A chance of showers. Mostly cloudy, with a high near 87.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 79.
Sunday
A chance of showers. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agana Heights GU
 13.47°N 144.74°E
Last Update:
6:05 pm ChST Aug 23, 2026
Forecast Valid:
7pm ChST Aug 23, 2026-6pm ChST Aug 30, 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