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.

A Few Clouds

82°F

28°C

Humidity 88%
Wind Speed E 12 mph
Barometer 29.86 in (1010.4 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 12 Jul 10:54 pm ChST
Extended Forecast for

3 Miles SSE Agat GU

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 74. East wind 9 to 11 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 84. Southeast wind 8 to 11 mph. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. South southeast wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. Southwest wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 76 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.

    High: 86 °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 84.

    High: 84 °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

Tonight
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 74. East wind 9 to 11 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 84. Southeast wind 8 to 11 mph. Chance of precipitation is 70%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. South southeast wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. Southwest wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. 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 84.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 75.
Friday
A chance of showers. Partly sunny, with a high near 84.
Friday Night
A chance of showers. Mostly cloudy, with a low around 75.
Saturday
A chance of showers. Partly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 75.
Sunday
Partly sunny, with a high near 84. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Agat GU
 13.35°N 144.67°E
Last Update:
6:06 pm ChST Jul 12, 2026
Forecast Valid:
11pm ChST Jul 12, 2026-6pm ChST Jul 19, 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