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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

A Few Clouds and Breezy

85°F

29°C

Humidity 53%
Wind Speed NE 22 G 26 mph
Barometer 29.90 in (1011.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 18 Mar 11:54 am ChST
Extended Forecast for

Hagatna GU

Coastal Flood Watch March 18, 12:26pm until March 18, 04:00pm
High Surf Advisory March 18, 12:26pm until March 20, 04:00pm
Click here for hazard details and duration
Coastal Flood Watch
High Surf Advisory
  •  
    Coastal Flood Watch March 18, 12:26pm until March 18, 04:00pm
    High Surf Advisory March 18, 12:26pm until March 20, 04:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 86 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers. Mostly cloudy, with a low around 73. Northeast wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 86. Northeast wind 9 to 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 72. Northeast wind 9 to 15 mph, with gusts as high as 22 mph.

    Low: 72 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers. Mostly sunny, with a high near 86. East northeast wind 13 to 17 mph, with gusts as high as 23 mph.

    High: 86 °F

    Isolated
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a high near 86. Northeast wind around 15 mph, with gusts as high as 20 mph.
Tonight
Isolated showers. Mostly cloudy, with a low around 73. Northeast wind 9 to 14 mph, with gusts as high as 18 mph.
Thursday
Isolated showers. Mostly sunny, with a high near 86. Northeast wind 9 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Isolated showers. Partly cloudy, with a low around 72. Northeast wind 9 to 15 mph, with gusts as high as 22 mph.
Friday
Isolated showers. Mostly sunny, with a high near 86. East northeast wind 13 to 17 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 72.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Mostly cloudy, with a low around 72.
Monday
A chance of showers. Partly sunny, with a high near 88.
Monday Night
A chance of showers. Mostly cloudy, with a low around 72.
Tuesday
A chance of showers. Partly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hagatna GU
 13.47°N 144.76°E
Last Update:
6:06 am ChST Mar 18, 2026
Forecast Valid:
12pm ChST Mar 18, 2026-6pm ChST Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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