Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Mostly Cloudy

82°F

28°C

Humidity 85%
Wind Speed E 16 G 24 mph
Barometer 29.86 in (1010.3 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 30 Nov 8:54 pm ChST
Extended Forecast for

Sinajana GU

High Surf Advisory until December 1, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory until December 1, 04:00pm

    NOW until 4:00pm Mon

    High Surf Advisory

  • Tonight

    Low: 79 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers.  Mostly cloudy, with a high near 85. East southeast wind 13 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 50%.

    High: 85 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 79. East southeast wind 11 to 14 mph, with gusts as high as 18 mph.  Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 85. East southeast wind 11 to 17 mph, with gusts as high as 23 mph.

    High: 85 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers.  Partly cloudy, with a low around 79. East wind 10 to 14 mph.

    Low: 79 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers.  Mostly sunny, with a high near 85.

    High: 85 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers.  Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Monday
Scattered showers. Mostly cloudy, with a high near 85. East southeast wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East southeast wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Tuesday
Isolated showers. Mostly sunny, with a high near 85. East southeast wind 11 to 17 mph, with gusts as high as 23 mph.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 79. East wind 10 to 14 mph.
Wednesday
Isolated showers. Mostly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 79.
Thursday
A chance of showers. Partly sunny, with a high near 85.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 79.
Friday
A chance of showers. Partly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 79.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 78.
Sunday
Mostly sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sinajana GU
 13.45°N 144.74°E
6:05 pm ChST Nov 30, 2025
9pm ChST Nov 30, 2025-6pm ChST Dec 7, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database