Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Fair

80°F

27°C

Humidity 87%
Wind Speed NE 5 mph
Barometer 29.86 in (1010.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 1 Oct 5:54 am ChST
Extended Forecast for

Sinajana GU

  • Today

    Today: Partly sunny, with a high near 87. East wind 5 to 7 mph.

    High: 87 °F

    Partly Sunny
    then Isolated
    Showers

  • Tonight

    Tonight: Scattered showers.  Mostly cloudy, with a low around 76. East northeast wind 5 to 7 mph.  Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers.  Partly sunny, with a high near 87. East wind 8 to 10 mph.  Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 77. East wind 3 to 8 mph.

    Low: 77 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. South southeast wind around 6 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 77.

    Low: 77 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 87. East wind 5 to 7 mph.
Tonight
Scattered showers. Mostly cloudy, with a low around 76. East northeast wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday
Scattered showers. Partly sunny, with a high near 87. East wind 8 to 10 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 77. East wind 3 to 8 mph.
Friday
Mostly sunny, with a high near 87. South southeast wind around 6 mph.
Friday Night
Partly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 77.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly cloudy, with a low around 77.
Monday
Partly sunny, with a high near 88.
Monday Night
A chance of showers. Mostly cloudy, with a low around 77.
Tuesday
A chance of showers. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Sinajana GU
 13.47°N 144.76°E
6:05 am ChST Oct 1, 2025
6am ChST Oct 1, 2025-6pm ChST Oct 7, 2025
 
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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