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.

A Few Clouds

80°F

27°C

Humidity 94%
Wind Speed SW 3 mph
Barometer 29.76 in (1006.9 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Sep 6:54 am ChST
Extended Forecast for

Tamuning GU

  • Today

    Today: Scattered showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind 8 to 13 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. West southwest wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind around 9 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 87. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

  • Tuesday

    Tuesday: 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 87. West southwest wind 8 to 13 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. West southwest wind 7 to 10 mph. Chance of precipitation is 40%.
Saturday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind around 9 mph. Chance of precipitation is 40%.
Saturday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Sunday
Scattered showers. Partly sunny, with a high near 87. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 79.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 87.
Monday Night
A chance of showers. Mostly cloudy, with a low around 79.
Tuesday
A chance of showers. Partly sunny, with a high near 86.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 79.
Wednesday
A chance of showers. Partly sunny, with a high near 87.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 82.
Thursday
A chance of showers. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tamuning GU
 13.49°N 144.79°E
Last Update:
6:05 am ChST Sep 18, 2026
Forecast Valid:
7am ChST Sep 18, 2026-6pm ChST Sep 24, 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