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2026 NOAA-NWS Western North Pacific Tropical Cyclone Outlook

Hazardous Weather Conditions

Flood Advisory in effect from July 19, 03:23 PM ChST until July 19, 06:15 PM ChST

Current conditions at

Guam International Airport (PGUM)

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

A Few Clouds

79°F

26°C

Humidity	88%
Wind Speed	E 6 mph
Barometer	29.80 in (1006.5 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	19 Jul 4:54 pm ChST

More Information:

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

Detailed forecast for

Guam

Tonight

Mostly cloudy with scattered showers in the evening, becoming partly cloudy with isolated showers overnight. South to southeast winds 5 mph. Lows around 78. Chance of showers 40 percent.

Monday

Partly cloudy with isolated showers. Mostly cloudy with scattered showers in the afternoon for guam. Southeast winds 5 to 10 mph. Highs around 88. Chance of showers 30 percent.

Monday Night

Partly cloudy with isolated showers. Southeast winds around 10 mph in the evening becoming light. Lows around 77. Chance of showers 20 percent.

Tuesday

Partly cloudy with isolated showers. East to southeast winds 5 to 10 mph. Highs around 88. Chance of showers 20 percent.

Tuesday Night And Wednesday

Mostly cloudy with scattered showers and isolated thunderstorms. East to southeast winds 5 to 10 mph. lows around 77. Highs around 87. Chance of showers 30 percent.

Wednesday Night And Thursday

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

Thursday Night Through Friday Night

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

Saturday Through Sunday

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