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.

Partly Cloudy

80°F

27°C

Humidity 90%
Wind Speed W 5 mph
Barometer 29.70 in (1004.7 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Sep 6:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Today

    Today: Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. West wind 10 to 13 mph, with gusts as high as 18 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 wind 8 to 11 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. West southwest wind 8 to 15 mph, with gusts as high as 18 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 8 to 11 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Saturday Night

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

    Low: 79 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Sunday Night

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

    Low: 79 °F

    Chance
    Showers

  • Monday

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

    High: 87 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. West wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. West wind 8 to 11 mph. Chance of precipitation is 30%.
Friday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. West southwest wind 8 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Saturday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind 8 to 11 mph. Chance of precipitation is 40%.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 79.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 87.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 79.
Monday
A 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. Mostly cloudy, with a high near 85.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 79.
Wednesday
A chance of showers. Mostly cloudy, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:06 am ChST Sep 17, 2026
Forecast Valid:
7am ChST Sep 17, 2026-6pm ChST Sep 23, 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