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

Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Light Rain

82°F

28°C

Humidity 89%
Wind Speed NE 7 mph
Barometer 29.78 in (1007.6 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 19 Oct 9:54 pm ChST
Extended Forecast for

Dededo GU

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. East wind 7 to 11 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind around 8 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. Southeast wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 77. East southeast wind 6 to 9 mph.

    Low: 77 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. East wind 7 to 11 mph. Chance of precipitation is 30%.
Monday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind around 8 mph. Chance of precipitation is 30%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East wind 7 to 10 mph. Chance of precipitation is 40%.
Tuesday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. Southeast wind 8 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 77. East southeast wind 6 to 9 mph.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 77.
Thursday
A chance of showers. Partly sunny, with a high near 87.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 77.
Friday
Partly sunny, with a high near 87.
Friday Night
Mostly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dededo GU
 13.52°N 144.83°E
Last Update:
6:05 pm ChST Oct 19, 2025
Forecast Valid:
9pm ChST Oct 19, 2025-6pm ChST Oct 26, 2025
 
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