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.

A Few Clouds

79°F

26°C

Humidity 94%
Wind Speed E 14 mph
Barometer 29.79 in (1007.9 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Nov 4:54 am ChST
Extended Forecast for

Sinajana GU

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 76. East wind around 9 mph.  Chance of precipitation is 70%.

    Low: 76 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms after noon.  Mostly cloudy, with a high near 86. East wind 9 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    High: 86 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 79. East wind 8 to 11 mph.  Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 86. East southeast wind 9 to 14 mph.  Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 79. East wind 8 to 10 mph.  Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 86. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers

  • Tuesday Night

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

    Low: 79 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 79 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 76. East wind around 9 mph. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 86. East wind 9 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 79. East wind 8 to 11 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. East southeast wind 9 to 14 mph. Chance of precipitation is 60%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. East wind 8 to 10 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 79.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A 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
Partly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 79.
Saturday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sinajana GU
 13.47°N 144.76°E
6:05 pm ChST Nov 29, 2025
4am ChST Nov 30, 2025-6pm ChST Dec 6, 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