National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Fair

80°F

27°C

Humidity 76%
Wind Speed E 8 mph
Barometer 29.93 in (1012.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 12 Feb 9:54 pm ChST
Extended Forecast for

Agana Heights GU

High Surf Advisory February 12, 10:48pm until February 13, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory February 12, 10:48pm until February 13, 04:00pm

    NOW until 4:00pm Fri

    High Surf Advisory

  • Tonight

    Low: 77 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers. Partly 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: Isolated showers. Mostly cloudy, with a low around 77. East northeast wind 10 to 16 mph, with gusts as high as 21 mph.

    Low: 77 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers. Mostly sunny, with a high near 87. East northeast wind 11 to 17 mph, with gusts as high as 23 mph.

    High: 87 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Isolated showers. Mostly cloudy, with a low around 77. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Isolated
    Showers

  • Sunday

    Sunday: Isolated showers. Partly sunny, with a high near 87.

    High: 87 °F

    Isolated
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Washington's Birthday

    Washington's Birthday: A chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers. Mostly cloudy, with a low around 77. East northeast wind around 10 mph.
Friday
Isolated showers. Partly sunny, with a high near 87. East northeast wind 10 to 17 mph, with gusts as high as 22 mph.
Friday Night
Isolated showers. Mostly cloudy, with a low around 77. East northeast wind 10 to 16 mph, with gusts as high as 21 mph.
Saturday
Isolated showers. Mostly sunny, with a high near 87. East northeast wind 11 to 17 mph, with gusts as high as 23 mph.
Saturday Night
Isolated showers. Mostly cloudy, with a low around 77. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Isolated showers. Partly sunny, with a high near 87.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 76.
Washington's Birthday
A chance of showers. Partly sunny, with a high near 87.
Monday Night
A chance of showers. Mostly cloudy, with a low around 76.
Tuesday
A chance of showers. Partly sunny, with a high near 87.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Wednesday
A chance of showers. Partly sunny, with a high near 88.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Thursday
A chance of showers. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agana Heights GU
 13.47°N 144.74°E
Last Update:
6:05 pm ChST Feb 12, 2026
Forecast Valid:
10pm ChST Feb 12, 2026-6pm ChST Feb 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