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

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Overcast and Windy

83°F

28°C

Humidity 88%
Wind Speed NW 26 G 40 mph
Barometer 29.49 in (997.9 mb)
Dewpoint 79°F (26°C)
Visibility 5.00 mi
Heat Index94°F (34°C)
Last update 5 Jul 7:54 pm ChST
Extended Forecast for

Santa Rosa GU

Typhoon Warning until further notice
Flood Watch July 5, 08:27pm until July 8, 06:00am
Flood Advisory until July 5, 11:15pm
High Surf Warning July 5, 08:27pm until July 9, 04:00pm
Coastal Flood Warning July 5, 08:27pm until July 8, 04:00pm
Click here for hazard details and duration
Typhoon Warning until further notice
Flood Watch
...
High Surf Warning
Coastal Flood Warning
  •  
    Typhoon Warning until further notice
    Flood Watch July 5, 08:27pm until July 8, 06:00am
    Flood Advisory until July 5, 11:15pm
    High Surf Warning July 5, 08:27pm until July 9, 04:00pm
    Coastal Flood Warning July 5, 08:27pm until July 8, 04:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 74 °F

    Tropical
    Storm
    Conditions
    Possible

  • Monday

    Monday: Tropical storm conditions possible. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Chance of precipitation is 100%.

    High: 83 °F

    Tropical
    Storm
    Conditions
    Possible

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 77. Windy, with a south wind 38 to 43 mph decreasing to 31 to 36 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%.

    Low: 77 °F

    Windy. Heavy
    Rain then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Windy, with a south wind 22 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely and
    Windy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 78. South wind 14 to 21 mph, with gusts as high as 28 mph.

    Low: 78 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 85.

    High: 85 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Tonight
Tropical storm conditions possible. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 74. Chance of precipitation is 100%.
Monday
Tropical storm conditions possible. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 77. Windy, with a south wind 38 to 43 mph decreasing to 31 to 36 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Windy, with a south wind 22 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 78. South wind 14 to 21 mph, with gusts as high as 28 mph.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 85.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 76.
Thursday
A chance of showers. Mostly cloudy, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 79.
Friday
A chance of showers. Partly sunny, with a high near 88.
Friday Night
Mostly cloudy, with a low around 80.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 82.
Sunday
A chance of showers. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:07 pm ChST Jul 5, 2026
Forecast Valid:
8pm ChST Jul 5, 2026-6pm ChST Jul 12, 2026
 
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