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

81°F

27°C

Humidity 82%
Wind Speed SE 6 mph
Barometer 29.82 in (1006.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Jul 7:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • Tonight

    Tonight: Scattered showers, mainly before midnight. Mostly cloudy, with a low around 75. South southeast wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. South southeast wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Isolated showers. Partly cloudy, with a low around 75. South southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 75 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers. Mostly sunny, with a high near 86. Light east wind becoming east southeast 5 to 9 mph in the morning.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers. Mostly cloudy, with a low around 75. East southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 75 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

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

    Low: 76 °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

Tonight
Scattered showers, mainly before midnight. Mostly cloudy, with a low around 75. South southeast wind 3 to 5 mph. Chance of precipitation is 40%.
Monday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. South southeast wind 5 to 9 mph. Chance of precipitation is 30%.
Monday Night
Isolated showers. Partly cloudy, with a low around 75. South southeast wind 5 to 8 mph becoming calm after midnight.
Tuesday
Isolated showers. Mostly sunny, with a high near 86. Light east wind becoming east southeast 5 to 9 mph in the morning.
Tuesday Night
Isolated showers. Mostly cloudy, with a low around 75. East southeast wind 5 to 8 mph becoming calm after midnight.
Wednesday
Scattered showers. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 76.
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. Mostly cloudy, with a high near 86.
Friday Night
A chance of showers. Mostly cloudy, with a low around 76.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 79.
Sunday
A chance of showers. Partly sunny, with a high near 84.
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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 Jul 19, 2026
Forecast Valid:
8pm ChST Jul 19, 2026-6pm ChST Jul 26, 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