Zone Forecast Product
Issued by NWS Tiyan, Guam

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FPMY50 PGUM 010639 AAA
ZFPGUM

Zone Forecast for Guam and the Northern Marianas...UPDATED
National Weather Service Tiyan GU
439 PM ChST Mon Sep 1 2025

GUZ001-MPZ001>003-012015-
Guam-Rota-Tinian-Saipan-
439 PM ChST Mon Sep 1 2025

Updated to increase the chance of showers to 50 percent for tonight.

.REST OF TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Light and variable winds becoming northeast 10 to 15
mph. Lows around 79. Chance of showers 50 percent.
.TUESDAY...Mostly cloudy with scattered showers and isolated
thunderstorms. East winds 10 to 15 mph. Highs around 87. Chance of
showers 40 percent.
.TUESDAY NIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Southeast winds 10 to 15 mph. Lows around 77. Chance
of showers 50 percent.
.WEDNESDAY...Partly sunny with scattered showers and isolated
thunderstorms. Southeast winds 10 to 15 mph. Highs around 86. Chance
of showers 30 percent.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. Isolated showers.
East winds around 10 mph. Lows around 79. Highs around 87. Chance of
showers 20 percent.
.THURSDAY NIGHT THROUGH MONDAY...Mostly cloudy with a 20 percent
chance of showers. Lows in the upper 70s. Highs in the upper 80s.


$$