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

77°F

25°C

Humidity 90%
Wind Speed SE 8 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Oct 6:54 pm ChST
Extended Forecast for

Agana Heights GU

High Surf Advisory October 19, 07:31pm until October 20, 04:00am
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory October 19, 07:31pm until October 20, 04:00am

    NOW until 4:00am Tue

    High Surf Advisory

  • Tonight

    Low: 78 °F

    Showers
    Likely then
    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers. Mostly sunny, with a high near 86. East southeast wind 7 to 11 mph.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 78. Northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Isolated showers. Mostly sunny, with a high near 86. Northeast wind 7 to 10 mph.

    High: 86 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers. Partly cloudy, with a low around 78. Northeast wind 7 to 9 mph.

    Low: 78 °F

    Isolated
    Showers

  • Thursday

    Thursday: Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Mostly cloudy, with a low around 78. Southeast wind 8 to 13 mph. Chance of precipitation is 60%.
Tuesday
Isolated showers. Mostly sunny, with a high near 86. East southeast wind 7 to 11 mph.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 78. Northeast wind around 6 mph. Chance of precipitation is 30%.
Wednesday
Isolated showers. Mostly sunny, with a high near 86. Northeast wind 7 to 10 mph.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 78. Northeast wind 7 to 9 mph.
Thursday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Friday
A chance of showers. Partly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 78.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 78.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 79.
Monday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agana Heights GU
 13.47°N 144.74°E
Last Update:
6:06 pm ChST Oct 19, 2026
Forecast Valid:
7pm ChST Oct 19, 2026-6pm ChST Oct 26, 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