138
FPMY50 PGUM 120500
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
300 PM ChST Sat Sep 12 2026

GUZ001-122000-
Guam-
300 PM ChST Sat Sep 12 2026

.TONIGHT...Partly cloudy with isolated showers. East winds around
10 mph in the evening becoming light. Lows around 78. Chance of
showers 20 percent.
.SUNDAY...Partly cloudy with isolated light showers in the morning,
becoming partly sunny with scattered island effect showers and
isolated thunderstorms in the afternoon. Light and variable winds.
Highs around 88. Chance of showers 30 percent.
.SUNDAY NIGHT...Partly cloudy with isolated light showers. Light and
variable winds. Lows around 78. Chance of showers 10 percent.
.MONDAY AND MONDAY NIGHT...Partly cloudy with isolated light showers
becoming partly sunny with scattered island effect showers and
isolated thunderstorms in the afternoon. Light and variable winds.
Highs around 87. Lows around 77. Chance of showers 30 percent.
.TUESDAY...Partly sunny with a 30 percent chance of showers and a
slight chance of thunderstorms. Light and variable winds. Highs
around 87.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly cloudy with a
30 percent chance of showers and a slight chance of thunderstorms.
Lows in the upper 70s. Highs in the mid 80s.
.THURSDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance
of showers. Highs in the upper 80s. Lows in the upper 70s.

$$

MPZ001>003-122000-
Rota-Tinian-Saipan-
300 PM ChST Sat Sep 12 2026

.TONIGHT...Partly cloudy with isolated showers. Northeast winds
10 to 15 mph. Lows around 78. Chance of showers 20 percent.
.SUNDAY THROUGH MONDAY...Partly cloudy with isolated light showers.
Light and variable winds. Lows around 78. Highs around 88. Chance of
showers 10 percent.
.MONDAY NIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Light and variable winds. Lows around 77. Chance of
showers 30 percent.
.TUESDAY...Partly sunny with a 30 percent chance of showers and a
slight chance of thunderstorms. Light and variable winds. Highs
around 87.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly cloudy with a
30 percent chance of showers and a slight chance of thunderstorms.
Lows in the upper 70s. Highs in the mid 80s.
.THURSDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance
of showers. Highs in the upper 80s. Lows in the upper 70s.

$$