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

88°F

31°C

Humidity 70%
Wind Speed W 14 mph
Barometer 29.84 in (1007.4 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 15 Aug 10:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Today

    Today: Partly sunny, with a high near 86. West southwest wind around 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Partly Sunny

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 11 to 14 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 85 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West southwest wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 85. West southwest wind 7 to 9 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 77 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 86. West southwest wind around 15 mph, with gusts as high as 20 mph.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind 11 to 14 mph. Chance of precipitation is 40%.
Sunday
Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West southwest wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 85. West southwest wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
Partly sunny, with a high near 86.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 77.
Wednesday
A chance of showers. Partly sunny, with a high near 86.
Wednesday Night
Mostly cloudy, with a low around 77.
Thursday
A chance of showers. Partly sunny, with a high near 85.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 82.
Friday
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:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:05 am ChST Aug 15, 2026
Forecast Valid:
11am ChST Aug 15, 2026-6pm ChST Aug 21, 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