Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Rain Fog/Mist

80°F

27°C

Humidity 90%
Wind Speed E 9 mph
Barometer 29.84 in (1009.6 mb)
Dewpoint 77°F (25°C)
Visibility 4.00 mi
Heat Index86°F (30°C)
Last update 10 Dec 11:54 am ChST
Extended Forecast for

Sinajana GU

  • This Afternoon

    This Afternoon: Isolated showers.  Mostly sunny, with a high near 87. East northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 77. East northeast wind 9 to 13 mph.

    Low: 77 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers.  Mostly sunny, with a high near 88. East northeast wind 10 to 16 mph, with gusts as high as 20 mph.

    High: 88 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers.  Partly cloudy, with a low around 77. East wind 7 to 14 mph.

    Low: 77 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers.  Mostly sunny, with a high near 87. East northeast wind 10 to 17 mph, with gusts as high as 22 mph.

    High: 87 °F

    Isolated
    Showers

  • Friday Night

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

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 77 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a high near 87. East northeast wind around 15 mph, with gusts as high as 20 mph.
Tonight
Isolated showers. Partly cloudy, with a low around 77. East northeast wind 9 to 13 mph.
Thursday
Isolated showers. Mostly sunny, with a high near 88. East northeast wind 10 to 16 mph, with gusts as high as 20 mph.
Thursday Night
Isolated showers. Partly cloudy, with a low around 77. East wind 7 to 14 mph.
Friday
Isolated showers. Mostly sunny, with a high near 87. East northeast wind 10 to 17 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Sinajana GU
 13.47°N 144.76°E
6:06 am ChST Dec 10, 2025
12pm ChST Dec 10, 2025-6pm ChST Dec 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database