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.

Partly Cloudy

79°F

26°C

Humidity 88%
Wind Speed S 3 mph
Barometer 29.87 in (1008.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Aug 6:54 am ChST
Extended Forecast for

Santa Rosa GU

  • Today

    Today: Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind 8 to 11 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 86. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 86 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 75. North wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. North wind 8 to 11 mph. Chance of precipitation is 30%.

    High: 86 °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: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 76.

    Low: 76 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind 8 to 11 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. West northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 86. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 75. North wind 6 to 8 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. North wind 8 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 76.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 76.
Friday
Mostly sunny, with a high near 87.
Friday Night
Mostly cloudy, with a low around 77.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
Mostly cloudy, with a low around 76.
Sunday
A chance of showers. 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 am ChST Aug 17, 2026
Forecast Valid:
7am ChST Aug 17, 2026-6pm ChST Aug 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