583
FNMY50 PGUM 191747
FWFGUM

Fire Weather Planning Forecast for Guam
National Weather Service Tiyan GU
347 AM ChST Thu Nov 20 2025

.Discussion...
0.37 inches of rain has fallen yesterday at Guam International Airport,
allowing the KBDI to drop slightly to 182, which remains in the low
category. Trade winds will continue to dominate for at least the next
week with a surge anticipated later this week. While the KBDI has
dropped slightly and the overall fire danger remains low, caution is
still recommended with any outdoor burning during periods when
strong trade winds are present.

GUZ001-202000-
Guam-
347 AM ChST Thu Nov 20 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mcldy        Mcldy
Precip Type           Showers      Showers      Tstms
Chance Rain (%)       20           30           40
Temp                  87           76           86
RH %                  70           100          76
20FtWnd-Val/AM(mph)   E 12                      E 13 G20
20FtWnd-Rdg/PM(mph)   E 12         E 11         E 14
Mixing Hgt(ft-msl)    295          1            302
Transport Wnd (mph)   E  3         N  0         E  3

$$

.Forecast for Days 3 Through 7...

.FRIDAY NIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Lows in the upper 70s. East winds 10 to 15 mph.
.SATURDAY...Partly sunny with isolated showers and thunderstorms.
Highs in the mid 80s. East winds 10 to 20 mph.
.SATURDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 10 to 15 mph.
.SUNDAY...Mostly sunny with a slight chance of showers. Highs in
the upper 80s. East winds 10 to 20 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 10 to 15 mph.
.MONDAY...Mostly sunny with a slight chance of showers. Highs in
the upper 80s. East winds 10 to 15 mph.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 10 to 15 mph.
.TUESDAY...Mostly sunny with a slight chance of showers. Highs in
the upper 80s. East winds 10 to 15 mph.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 10 to 15 mph.
.WEDNESDAY...Mostly sunny with a slight chance of showers. Highs
in the upper 80s. East winds 10 to 15 mph.

$$