273
FPMY50 PGUM 161735
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
335 AM ChST Sun Aug 17 2025

GUZ001-MPZ001>003-170900-
Guam-Rota-Tinian-Saipan-
335 AM ChST Sun Aug 17 2025

.TODAY...Partly cloudy with isolated showers becoming mostly cloudy
with scattered showers near noon. Isolated thunderstorms. East winds
10 to 15 mph. Highs around 86. Chance of showers 40 percent.
.TONIGHT...Mostly cloudy. Isolated showers and thunderstorms. East
winds 10 to 15 mph. Lows around 78. Chance of showers 20 percent.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms. East
winds 10 to 15 mph. Highs around 88. Chance of showers 20 percent.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Scattered showers and
isolated thunderstorms. Southeast winds 10 to 15 mph. Lows around 78.
Highs around 86. Chance of showers 40 percent.
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A 30 percent chance of
showers and a slight chance of thunderstorms. Lows in the upper 70s.
Highs in the upper 80s.
.WEDNESDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a 20 percent
chance of showers and thunderstorms. Lows in the upper 70s. Highs in
the upper 80s.

$$