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

79°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 29.86 in (1010.2 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 28 Sep 3:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Light west wind. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Monday

    Monday: Partly sunny, with a high near 87. Light west wind.

    High: 87 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Calm wind becoming west around 5 mph after midnight.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. West wind 5 to 8 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 79. West wind 6 to 8 mph.

    Low: 79 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Thursday

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

    High: 86 °F

    Chance
    Showers

  • Thursday Night

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

    Low: 76 °F

    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Light west wind. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 87. Light west wind.
Monday Night
Partly cloudy, with a low around 77. Calm wind becoming west around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 87. West wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 79. West wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 87.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Thursday
A chance of showers. Partly sunny, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 76.
Friday
A chance of showers. Partly sunny, with a high near 85. Breezy.
Friday Night
A chance of showers. Mostly cloudy, with a low around 75.
Saturday
A chance of showers. Partly sunny, with a high near 84. Breezy.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 76.
Sunday
A chance of showers. Partly sunny, with a high near 85. Breezy.
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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 Sep 27, 2026
Forecast Valid:
4am ChST Sep 28, 2026-6pm ChST Oct 4, 2026
 
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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