606
FPMY50 PGUM 191614
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
214 AM ChST Sun Jul 20 2025

GUZ001-MPZ001>003-200800-
Guam-Rota-Tinian-Saipan-
214 AM ChST Sun Jul 20 2025

.TODAY...Cloudy with numerous showers and isolated thunderstorms.
Locally heavy showers possible. Southeast winds 5 to 15 mph. Highs
around 86. Chance of showers 60 percent.
.TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Light and variable winds. Lows around 77. Chance of
showers 40 percent.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Scattered showers and
isolated thunderstorms. Southeast winds 10 to 15 mph. Highs around
86. Lows around 77. Chance of showers 30 percent.
.TUESDAY...Partly cloudy with isolated showers and thunderstorms.
Southeast winds around 10 mph in the morning becoming light. Highs
around 86. Chance of showers 20 percent.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers
and thunderstorms. Lows in the upper 70s.
.WEDNESDAY...Partly cloudy with a 20 percent chance of showers and
thunderstorms. Highs in the mid 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of showers
and a slight chance of thunderstorms. Lows in the upper 70s.
.THURSDAY THROUGH SATURDAY...Mostly cloudy with a 50 percent chance
of showers and a slight chance of thunderstorms. Highs in the mid
80s. Lows in the upper 70s.

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