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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Current conditions at

Andersen, Mariana Is, Andersen Air Force Base (PGUA)

Lat: 13.58°NLon: 144.93°EElev: 614ft.

Mostly Cloudy

82°F

28°C

Humidity 66%
Wind Speed NE 18 mph
Barometer 29.83 in (1009.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 20 Mar 2:55 pm ChST
Extended Forecast for

Andersen AFB GU

High Surf Advisory March 20, 03:04pm until March 20, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory March 20, 03:04pm until March 20, 04:00pm

    NOW until 4:00pm Fri

    High Surf Advisory

  • Tonight

    Low: 74 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers. Partly sunny, with a high near 85. East northeast wind 10 to 17 mph, with gusts as high as 22 mph.

    High: 85 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Isolated showers. Partly cloudy, with a low around 75. Northeast wind 13 to 17 mph, with gusts as high as 23 mph.

    Low: 75 °F

    Isolated
    Showers

  • Sunday

    Sunday: Isolated showers. Mostly sunny, with a high near 86. Northeast wind 14 to 18 mph, with gusts as high as 24 mph.

    High: 86 °F

    Isolated
    Showers

  • Sunday Night

    Sunday Night: Isolated showers. Partly cloudy, with a low around 75. East northeast wind 13 to 18 mph, with gusts as high as 23 mph.

    Low: 75 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers. Mostly sunny, with a high near 86.

    High: 86 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

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

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers. Partly cloudy, with a low around 74. Northeast wind 10 to 16 mph, with gusts as high as 21 mph.
Saturday
Isolated showers. Partly sunny, with a high near 85. East northeast wind 10 to 17 mph, with gusts as high as 22 mph.
Saturday Night
Isolated showers. Partly cloudy, with a low around 75. Northeast wind 13 to 17 mph, with gusts as high as 23 mph.
Sunday
Isolated showers. Mostly sunny, with a high near 86. Northeast wind 14 to 18 mph, with gusts as high as 24 mph.
Sunday Night
Isolated showers. Partly cloudy, with a low around 75. East northeast wind 13 to 18 mph, with gusts as high as 23 mph.
Monday
Isolated showers. Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A chance of showers. Partly sunny, with a high near 86.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 75.
Wednesday
Partly sunny, with a high near 86.
Wednesday Night
Mostly cloudy, with a low around 75.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Mostly cloudy, with a low around 75.
Friday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Andersen AFB GU
 13.59°N 144.93°E
Last Update:
2:54 pm ChST Mar 20, 2026
Forecast Valid:
3pm ChST Mar 20, 2026-6pm ChST Mar 27, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation