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 90%
Wind Speed Calm
Barometer 29.87 in (1010.8 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 24 Sep 1:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 78. West southwest wind around 6 mph.

    Low: 78 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 86. West southwest wind 6 to 11 mph.

    High: 86 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 78. West wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. West wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 78. West wind 7 to 9 mph.

    Low: 78 °F

    Isolated
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Saturday Night

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

    Low: 78 °F

    Chance
    Showers

  • Sunday

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

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 78. West southwest wind around 6 mph.
Thursday
Isolated showers. Mostly sunny, with a high near 86. West southwest wind 6 to 11 mph.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 78. West wind 7 to 10 mph. Chance of precipitation is 30%.
Friday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. West wind 8 to 10 mph. Chance of precipitation is 30%.
Friday Night
Isolated showers. Partly cloudy, with a low around 78. West wind 7 to 9 mph.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 86.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Sunday
A chance of showers. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 78.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
Mostly 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 Sep 23, 2026
Forecast Valid:
2am ChST Sep 24, 2026-6pm ChST Sep 30, 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