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.

Mostly Cloudy

81°F

27°C

Humidity 74%
Wind Speed E 7 mph
Barometer 29.87 in (1010.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Jul 9:54 pm ChST
Extended Forecast for

Apra Harbor GU

  • Tonight

    Tonight: Scattered showers after 11pm. Mostly cloudy, with a low around 78. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 87. East southeast wind 7 to 9 mph.

    High: 87 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East wind 6 to 9 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 87. East southeast wind 7 to 10 mph.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 5 to 9 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Friday

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

    High: 86 °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 chance of showers. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers after 11pm. Mostly cloudy, with a low around 78. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 87. East southeast wind 7 to 9 mph.
Wednesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East wind 6 to 9 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 87. East southeast wind 7 to 10 mph.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 5 to 9 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 77.
Saturday
A chance of showers. Partly sunny, with a high near 85.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 78.
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 85.
Monday Night
A chance of showers. Mostly cloudy, with a low around 77.
Tuesday
A chance of showers. Mostly cloudy, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Apra Harbor GU
 13.42°N 144.64°E
Last Update:
6:05 pm ChST Jul 15, 2025
Forecast Valid:
10pm ChST Jul 15, 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