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

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Partly Cloudy

88°F

31°C

Humidity 70%
Wind Speed SW 14 mph
Barometer 29.79 in (1006.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 16 Aug 1:54 pm ChST
Extended Forecast for

Agana Heights GU

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. West wind around 11 mph. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. West southwest wind around 9 mph. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Tuesday Night

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

    Low: 78 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 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 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. West wind around 11 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind 7 to 10 mph. Chance of precipitation is 40%.
Monday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. West southwest wind around 9 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 87.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 78.
Thursday
A chance of showers. Partly sunny, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 77.
Friday
A chance of showers. Partly sunny, with a high near 87.
Friday Night
A chance of showers. Mostly cloudy, with a low around 77.
Saturday
A chance of showers. Partly 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:
6:05 am ChST Aug 16, 2026
Forecast Valid:
2pm ChST Aug 16, 2026-6pm ChST Aug 22, 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