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 E 7 mph
Barometer 29.82 in (1006.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Jul 3:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Today

    Today: Scattered showers, mainly after noon. Partly sunny, with a high near 87. East wind 7 to 14 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers. Mostly cloudy, with a low around 75. Southeast wind 9 to 14 mph becoming light south after midnight. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Isolated showers. Partly sunny, with a high near 87. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 87 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 75. South wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 86. South wind around 7 mph.

    High: 86 °F

    Chance
    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: A 30 percent chance of showers. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers

  • Friday Night

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

    Low: 76 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

Detailed Forecast

Today
Scattered showers, mainly after noon. Partly sunny, with a high near 87. East wind 7 to 14 mph. Chance of precipitation is 30%.
Tonight
Scattered showers. Mostly cloudy, with a low around 75. Southeast wind 9 to 14 mph becoming light south after midnight. Chance of precipitation is 30%.
Wednesday
Isolated showers. Partly sunny, with a high near 87. Light south southeast wind becoming south 5 to 10 mph in the morning.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 75. South wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 86. South wind around 7 mph.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 76.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 88.
Friday Night
A chance of showers. Mostly cloudy, with a low around 76.
Saturday
Partly sunny, with a high near 88.
Saturday Night
Mostly cloudy, with a low around 76.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 87.
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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:
1:55 am ChST Jul 21, 2026
Forecast Valid:
4am ChST Jul 21, 2026-6pm ChST Jul 27, 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