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.

Fair

82°F

28°C

Humidity 85%
Wind Speed E 3 mph
Barometer 29.82 in (1008.9 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 11 Sep 11:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 77. East northeast wind around 5 mph becoming calm.

    Low: 77 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. Light east northeast wind. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Isolated showers. Partly cloudy, with a low around 78. East wind 3 to 5 mph.

    Low: 78 °F

    Isolated
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 88. East wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers. Partly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Isolated
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Monday Night

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

    Low: 77 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 77. East northeast wind around 5 mph becoming calm.
Saturday
Scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. Light east northeast wind. Chance of precipitation is 30%.
Saturday Night
Isolated showers. Partly cloudy, with a low around 78. East wind 3 to 5 mph.
Sunday
Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 88. East wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm in the evening.
Monday
A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 87.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 77.
Tuesday
A chance of showers. Partly sunny, with a high near 87.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Wednesday
A chance of showers. Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Thursday
A chance of showers. Partly sunny, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 79.
Friday
A chance of showers. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:05 pm ChST Sep 11, 2026
Forecast Valid:
12am ChST Sep 12, 2026-6pm ChST Sep 18, 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