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.

Rain Fog/Mist

81°F

27°C

Humidity 94%
Wind Speed N 12 mph
Barometer 29.90 in (1011.6 mb)
Dewpoint 79°F (26°C)
Visibility 5.00 mi
Heat Index89°F (32°C)
Last update 19 Sep 6:54 pm ChST
Extended Forecast for

Tamuning GU

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 85. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 40%.

    Low: 85 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. Calm wind becoming west northwest 5 to 7 mph in the morning. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 85. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 85 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. Calm wind becoming south southeast 5 to 8 mph in the morning. Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 85. South wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 85 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 84.

    Low: 84 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 84.

    Low: 84 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 85. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 40%.
Sunday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. Calm wind becoming west northwest 5 to 7 mph in the morning. Chance of precipitation is 50%.
Sunday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 85. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Monday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. Calm wind becoming south southeast 5 to 8 mph in the morning. Chance of precipitation is 50%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 85. South wind 5 to 7 mph. Chance of precipitation is 40%.
Tuesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Chance of precipitation is 50%.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 84.
Wednesday
A chance of showers. Mostly cloudy, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 84.
Thursday
A chance of showers. Partly sunny, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 84.
Friday
A chance of showers. Mostly cloudy, with a high near 86.
Friday Night
A chance of showers. Mostly cloudy, with a low around 84.
Saturday
A chance of showers. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tamuning GU
 13.49°N 144.76°E
Last Update:
6:06 pm ChST Sep 19, 2026
Forecast Valid:
7pm ChST Sep 19, 2026-6pm ChST Sep 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