National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Mostly Cloudy and Breezy

81°F

27°C

Humidity 91%
Wind Speed W 21 G 31 mph
Barometer 29.73 in (1006.0 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 2 Aug 8:54 pm ChST
Extended Forecast for

Nimitz Hill Annex GU

High Surf Advisory August 2, 10:00pm until August 8, 04:00pm
Click here for hazard details and duration
High Surf Advisory

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. West wind 15 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 13 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 13 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

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

    High: 86 °F

    Scattered
    Showers

  • Wednesday Night

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

    Low: 77 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Thursday Night

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

    Low: 77 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Monday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. West wind 15 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 13 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 13 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 77.
Thursday
Partly sunny, with a high near 84.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 77.
Friday
A chance of showers. Partly sunny, with a high near 84.
Friday Night
A chance of showers. Mostly cloudy, with a low around 79.
Saturday
A chance of showers. Mostly cloudy, with a high near 84. Breezy.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 79.
Sunday
A chance of showers. Partly sunny, with a high near 84. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nimitz Hill Annex GU
 13.47°N 144.74°E
Last Update:
6:06 pm ChST Aug 2, 2026
Forecast Valid:
9pm ChST Aug 2, 2026-6pm ChST Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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