270
FPMY50 PGUM 220135
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
1135 AM ChST Fri Aug 22 2025

GUZ001-MPZ001>003-220830-
Guam-Rota-Tinian-Saipan-
1135 AM ChST Fri Aug 22 2025

Update chance of showers to numerous for today and tonight.

.REST OF TODAY...Mostly cloudy. Numerous showers and isolated
thunderstorms. East winds 10 to 15 mph. Highs around 87. Chance of
showers 70 percent.
.TONIGHT...Cloudy with numerous showers and isolated thunderstorms.
East winds around 10 mph in the evening becoming light. Lows around
80. Chance of showers 60 percent.
.SATURDAY...Partly sunny with scattered showers and isolated
thunderstorms. Light and variable winds. Highs near 87. Chance of
showers 30 percent.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy with isolated showers and
thunderstorms. East winds 10 to 15 mph. Lows around 80. Highs near
86. Chance of showers 20 percent.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of showers
and thunderstorms. Lows in the upper 70s.
.MONDAY THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy with a
40 percent chance of showers and a slight chance of thunderstorms.
Highs in the upper 80s. Lows in the upper 70s.
.THURSDAY...Partly sunny with a 30 percent chance of showers. Highs
in the upper 80s.

$$