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.

Mostly Cloudy

86°F

30°C

Humidity 72%
Wind Speed NE 13 mph
Barometer 29.84 in (1009.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Jun 4:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • This Afternoon

    This Afternoon: Scattered showers. Partly sunny, with a high near 87. East northeast wind around 7 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 77. East northeast wind 5 to 7 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

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

    High: 86 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. South wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 79.

    Low: 79 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers. Partly sunny, with a high near 87. East northeast wind around 7 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 77. East northeast wind 5 to 7 mph.
Thursday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. East northeast wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 50%.
Juneteenth
Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. South wind 5 to 8 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 79.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 79.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 79.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly cloudy, with a low around 79.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Mostly cloudy, with a low around 79.
Wednesday
Partly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:06 am ChST Jun 17, 2026
Forecast Valid:
5pm ChST Jun 17, 2026-6pm ChST Jun 24, 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