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

78°F

26°C

Humidity 93%
Wind Speed Calm
Barometer 29.87 in (1010.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Sep 10:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Northeast wind around 7 mph.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: Scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. Northeast wind around 8 mph. Chance of precipitation is 30%.

    High: 88 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77. Northeast wind around 6 mph becoming calm after midnight.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Scattered showers, mainly after noon. Partly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Isolated showers. Partly cloudy, with a low around 78. Calm wind becoming east around 5 mph.

    Low: 78 °F

    Isolated
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after noon. Partly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 76. Northeast wind around 7 mph.
Friday
Scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. Northeast wind around 8 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 77. Northeast wind around 6 mph becoming calm after midnight.
Saturday
Scattered showers, mainly after noon. Partly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 30%.
Saturday Night
Isolated showers. Partly cloudy, with a low around 78. Calm wind becoming east around 5 mph.
Sunday
A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 78.
Monday
A chance of showers after noon. Partly sunny, with a high near 87.
Monday Night
A chance of showers. Mostly cloudy, with a low around 77.
Tuesday
A chance of showers. Partly sunny, with a high near 87.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Wednesday
A chance of showers. Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Thursday
A chance of showers. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:05 pm ChST Sep 10, 2026
Forecast Valid:
11pm ChST Sep 10, 2026-6pm ChST Sep 17, 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