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

Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Overcast

80°F

27°C

Humidity 94%
Wind Speed NE 5 mph
Barometer 29.77 in (1007.2 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 22 Jan 6:54 pm ChST
Extended Forecast for

Tamuning GU

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Cloudy, with a low around 77. East southeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

    Low: 77 °F

    Showers
    Likely

  • Friday

    Friday: Scattered showers. Partly sunny, with a high near 87. South southeast wind 14 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 78. South wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Saturday

    Saturday: Isolated showers. Partly sunny, with a high near 87. South wind 10 to 14 mph.

    High: 87 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 78. South wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Monday

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

    High: 86 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 78. Breezy.

    Low: 78 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 77. East southeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Friday
Scattered showers. Partly sunny, with a high near 87. South southeast wind 14 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 78. South wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Saturday
Isolated showers. Partly sunny, with a high near 87. South wind 10 to 14 mph.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 78. South wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 40%.
Sunday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Monday
A chance of showers. Partly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 78. Breezy.
Tuesday
A chance of showers. Mostly cloudy, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 78.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 78.
Thursday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tamuning GU
 13.49°N 144.79°E
Last Update:
6:06 pm ChST Jan 22, 2026
Forecast Valid:
7pm ChST Jan 22, 2026-6pm ChST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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