National Weather Service

News Headlines

2026 NOAA-NWS Western North Pacific Tropical Cyclone Outlook

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48° N Lon: 144.8° E Elev: 304 ft.

Partly Cloudy

86°F

30°C

Humidity	80%
Wind Speed	W 10 mph
Barometer	29.83 in (1007.0 mb)
Dewpoint	79°F (26°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	16 Aug 11:54 am ChST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Guam

Today

Mostly cloudy with scattered showers and isolated thunderstorms. Southwest winds 10 to 15 mph. Highs around 87. Chance of showers 40 percent.

Tonight

Mostly cloudy with scattered showers and isolated thunderstorms. Southwest winds around 10 mph. Lows around 77. Chance of showers 40 percent.

Monday

Partly sunny with scattered showers and isolated thunderstorms. Southwest winds 5 to 10 mph. Highs around 87. Chance of showers 40 percent.

Monday Night

Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Lows around 77. Chance of showers 40 percent.

Tuesday

Partly sunny with scattered showers and isolated thunderstorms. Light and variable winds becoming north around 10 mph in the afternoon. Highs around 87. Chance of showers 40 percent.

Tuesday Night Through Thursday Night

Mostly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the mid to upper 80s.

Friday Through Saturday

Mostly cloudy with a 50 percent chance of showers and a slight chance of thunderstorms. Highs in the mid to upper 80s. Lows in the upper 70s.