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.

Fair

82°F

28°C

Humidity	85%
Wind Speed	SW 3 mph
Barometer	29.85 in (1009.8 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	18 Jul 10:54 pm ChST

More Information:

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

Detailed forecast for

Guam

Tonight

Partly cloudy with isolated showers. Southwest winds 10 to 15 mph. Lows around 78. Chance of showers 20 percent.

Sunday

Partly cloudy with isolated showers in the morning, becoming mostly cloudy with scattered island showers in the afternoon. South to southwest winds 5 mph. Highs around 87. Chance of showers 30 percent.

Sunday Night

Mostly cloudy with scattered showers. Southeast to south winds 5 to 10 mph. Lows around 77. Chance of showers 30 percent.

Monday Through Tuesday

Partly cloudy with isolated showers. East to southeast winds 5 to 15 mph. Highs around 87. Lows around 76. chance of showers 20 percent.

Tuesday Night And Wednesday

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

Wednesday Night And Thursday

Mostly cloudy with a 40 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s.

Thursday Night Through Saturday

Breezy at times. Mostly cloudy with a 50 percent chance of showers and a slight chance of thunderstorms. Locally heavy showers possible. Lows in the mid to upper 70s. Highs in the mid to upper 80s.