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

85°F

29°C

Humidity 77%
Wind Speed E 9 mph
Barometer 29.89 in (1011.2 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Jun 5:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • Tonight

    Tonight: Scattered showers, mainly before midnight. Mostly cloudy, with a low around 77. East wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 87. East northeast wind around 7 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. East northeast wind 5 to 7 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. East northeast wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

  • Saturday

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

    High: 87 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 79.

    Low: 79 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers, mainly before midnight. Mostly cloudy, with a low around 77. East wind 6 to 8 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers. Partly sunny, with a high near 87. East northeast wind around 7 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 77. East northeast wind 5 to 7 mph.
Thursday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. East northeast wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 50%.
Juneteenth
Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 79.
Saturday
A chance of showers. Partly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 79.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 79.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly cloudy, with a low around 79.
Tuesday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
3:09 pm ChST Jun 16, 2026
Forecast Valid:
6pm ChST Jun 16, 2026-6pm ChST Jun 23, 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