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.

Overcast

79°F

26°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 29.85 in (1009.9 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 12 Jul 11:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. East wind around 9 mph. Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 85. Southeast wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 7 to 9 mph becoming south southwest after midnight. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Southwest wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 11 to 14 mph. Chance of precipitation is 50%.

    Low: 76 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 75.

    Low: 75 °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 75.

    Low: 75 °F

    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. East wind around 9 mph. Chance of precipitation is 50%.
Monday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 85. Southeast wind 8 to 10 mph. Chance of precipitation is 70%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 7 to 9 mph becoming south southwest after midnight. Chance of precipitation is 30%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Southwest wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 11 to 14 mph. Chance of precipitation is 50%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 75.
Thursday
A chance of showers. Partly sunny, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 75.
Friday
A chance of showers. Partly sunny, with a high near 86.
Friday Night
A chance of showers. Mostly cloudy, with a low around 75.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
Mostly cloudy, with a low around 75.
Sunday
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 pm ChST Jul 12, 2026
Forecast Valid:
12am ChST Jul 13, 2026-6pm ChST Jul 19, 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