Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. 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 88%
Wind Speed E 5 mph
Barometer 29.78 in (1007.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 19 Jan 9:54 pm ChST
Extended Forecast for

Dededo GU

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 76. East wind 5 to 7 mph.

    Low: 76 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 86. East wind 6 to 8 mph.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers.  Partly cloudy, with a low around 76. East wind 5 to 8 mph.

    Low: 76 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 88. East wind 7 to 10 mph.  Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 76. East wind 6 to 8 mph.  Chance of precipitation is 50%.

    Low: 76 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers.  Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers. Partly cloudy, with a low around 76. East wind 5 to 7 mph.
Tuesday
Isolated showers. Mostly sunny, with a high near 86. East wind 6 to 8 mph.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 76. East wind 5 to 8 mph.
Wednesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. East wind 7 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. East wind 6 to 8 mph. Chance of precipitation is 50%.
Thursday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. Chance of precipitation is 50%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 76.
Friday
A chance of showers. Partly sunny, with a high near 86.
Friday Night
A chance of showers. Mostly cloudy, with a low around 76.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 76.
Sunday
A chance of showers. Partly sunny, with a high near 88.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 76.
Monday
A chance of showers. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Dededo GU
 13.52°N 144.83°E
6:06 pm ChST Jan 19, 2026
10pm ChST Jan 19, 2026-6pm ChST Jan 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database