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.

Heavy Rain Fog/Mist

78°F

26°C

Humidity 93%
Wind Speed N 6 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 76°F (24°C)
Visibility 3.00 mi
Heat Index81°F (27°C)
Last update 28 Sep 1:54 pm ChST
Extended Forecast for

Agana GU

  • This Afternoon

    This Afternoon: Scattered showers. Mostly cloudy, with a high near 88. East southeast wind around 9 mph. Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Cloudy, with a low around 76. East northeast wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Monday

    Monday: Scattered showers. Mostly cloudy, with a high near 86. East wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers. Mostly cloudy, with a low around 76. East southeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers. Partly sunny, with a high near 86. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 77.

    Low: 77 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Scattered showers. Mostly cloudy, with a high near 88. East southeast wind around 9 mph. Chance of precipitation is 50%.
Tonight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 76. East northeast wind 5 to 8 mph. Chance of precipitation is 60%.
Monday
Scattered showers. Mostly cloudy, with a high near 86. East wind 5 to 8 mph. Chance of precipitation is 50%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 76. East southeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Tuesday
Scattered showers. Partly sunny, with a high near 86. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 77.
Wednesday
Partly sunny, with a high near 88.
Wednesday Night
Mostly cloudy, with a low around 77.
Thursday
Partly sunny, with a high near 88.
Thursday Night
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
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ABOUT THIS FORECAST

 
Point Forecast:
Agana GU
 13.47°N 144.74°E
Last Update:
6:05 am ChST Sep 28, 2025
Forecast Valid:
2pm ChST Sep 28, 2025-6pm ChST Oct 4, 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