399
FPMY50 PGUM 230507
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
307 PM ChST Sat Aug 23 2025

GUZ001-MPZ001>003-232000-
Guam-Rota-Tinian-Saipan-
307 PM ChST Sat Aug 23 2025

.TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. East winds 10 to 15 mph. Lows around 77. Chance of
showers 30 percent.
.SUNDAY...Partly sunny with scattered showers and isolated
thunderstorms. East winds 10 to 15 mph. Highs around 86. Chance of
showers 30 percent.
.SUNDAY NIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. East winds around 10 mph in the evening becoming
light. Lows around 77. Chance of showers 40 percent.
.MONDAY...Partly sunny with scattered showers and isolated
thunderstorms. East winds 10 to 15 mph. Highs around 88. Chance of
showers 40 percent.
.MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers
and thunderstorms. East winds 10 to 15 mph. Lows around 77.
.TUESDAY...Partly sunny with a 30 percent chance of showers and a
slight chance of thunderstorms. East winds 10 to 15 mph. Highs
around 87.
.TUESDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers and a slight chance of thunderstorms. Lows in the upper 70s.
Highs in the upper 80s. Chance of showers 30 percent.

$$