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

80°F

27°C

Humidity 90%
Wind Speed NE 6 mph
Barometer 29.77 in (1007.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 13 Sep 6:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Today

    Today: Scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. East northeast wind around 6 mph becoming calm in the morning. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers. Partly cloudy, with a low around 78. Light northeast wind.

    Low: 78 °F

    Isolated
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 87. Light north wind. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Isolated showers. Partly cloudy, with a low around 77. North wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers. Partly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent 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 76.

    Low: 76 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. East northeast wind around 6 mph becoming calm in the morning. Chance of precipitation is 30%.
Tonight
Isolated showers. Partly cloudy, with a low around 78. Light northeast wind.
Monday
Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 87. Light north wind. Chance of precipitation is 30%.
Monday Night
Isolated showers. Partly cloudy, with a low around 77. North wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 87. Light and variable wind.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 76.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 79.
Friday
Mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 79.
Saturday
Mostly sunny, 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:
6:05 am ChST Sep 13, 2026
Forecast Valid:
7am ChST Sep 13, 2026-6pm ChST Sep 19, 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