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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.

Mostly Cloudy

83°F

28°C

Humidity	82%
Wind Speed	NW 8 mph
Barometer	29.81 in (1008.7 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	92°F (33°C)
Last update	31 Aug 1:54 pm 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. Northwest winds 10 to 15 mph. Highs around 86. Chance of showers 40 percent.

Tonight

Mostly cloudy with scattered showers and isolated thunderstorms. Northwest winds 10 to 15 mph. Lows around 78. Chance of showers 30 percent.

Tuesday And Tuesday Night

Mostly cloudy. Scattered showers and isolated thunderstorms. West winds around 10 mph. Highs around 86. Lows around 78. Chance of showers 40 percent.

Wednesday

Partly sunny with a 30 percent chance of showers and a slight chance of thunderstorms. Light and variable winds becoming southwest around 10 mph in the afternoon. Highs around 86.

Wednesday Night Through Thursday Night

Breezy. Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the mid 80s.

Friday Through Sunday

Breezy. Partly cloudy with a 20 percent chance of showers. Highs in the mid 80s. Lows in the mid 70s.