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.

A Few Clouds

81°F

27°C

Humidity 94%
Wind Speed SW 10 mph
Barometer 29.80 in (1006.4 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 16 Aug 12:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind around 11 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind 11 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    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 13 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind around 9 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West southwest wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. 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: A chance of showers. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Wednesday Night

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

    Low: 77 °F

    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West southwest wind around 11 mph. Chance of precipitation is 30%.
Sunday
Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind 11 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Sunday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West southwest wind 9 to 13 mph. Chance of precipitation is 30%.
Monday
Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind around 9 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 77.
Wednesday
A chance of showers. Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. 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 76.
Friday
A chance of showers. Partly sunny, with a high near 86.
Friday Night
A chance of showers. Mostly cloudy, with a low around 76.
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:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:05 pm ChST Aug 15, 2026
Forecast Valid:
1am ChST Aug 16, 2026-6pm ChST Aug 22, 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