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.

A Few Clouds

81°F

27°C

Humidity 82%
Wind Speed NW 12 mph
Barometer 29.86 in (1010.2 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 31 Aug 7:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • Tonight

    Tonight: Isolated showers. Mostly cloudy, with a low around 76. Northwest wind around 6 mph.

    Low: 76 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers. Partly sunny, with a high near 86. West northwest wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West northwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

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

    High: 86 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 74. West southwest wind 8 to 11 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Heavy Rain

  • Thursday

    Thursday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Scattered
    Showers

  • Thursday Night

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

    Low: 76 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Tonight
Isolated showers. Mostly cloudy, with a low around 76. Northwest wind around 6 mph.
Tuesday
Scattered showers. Partly sunny, with a high near 86. West northwest wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. West northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. West wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday Night
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 74. West southwest wind 8 to 11 mph. Chance of precipitation is 60%.
Thursday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 76.
Friday
Partly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 77.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 76.
Sunday
A chance of showers. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 76.
Labor Day
Partly 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:
6:06 pm ChST Aug 31, 2026
Forecast Valid:
8pm ChST Aug 31, 2026-6pm ChST Sep 7, 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