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.

Fair

78°F

26°C

Humidity 90%
Wind Speed Calm
Barometer 29.85 in (1009.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Jul 5:54 am ChST
Extended Forecast for

Agana GU

  • Today

    Today: Scattered showers and thunderstorms. Partly sunny, with a high near 88. East southeast wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 88. East southeast wind 8 to 11 mph.

    High: 88 °F

    Partly Sunny

  • Thursday Night

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

    Low: 77 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind 8 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    Showers

  • Sunday

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

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers and thunderstorms. Partly sunny, with a high near 88. East southeast wind 8 to 10 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind 7 to 9 mph. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 88. East southeast wind 8 to 11 mph.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 7 to 10 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind 8 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 77.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 77.
Sunday
A chance of showers. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 77.
Monday
A chance of showers. Partly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 77.
Tuesday
A chance of showers. Mostly cloudy, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agana GU
 13.47°N 144.74°E
Last Update:
6:05 am ChST Jul 16, 2025
Forecast Valid:
6am ChST Jul 16, 2025-6pm ChST Jul 22, 2025
 
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