FNMY50 PGUM 191757 FWFGUM Fire Weather Planning Forecast for Guam National Weather Service Tiyan GU 357 AM ChST Mon Apr 20 2026 .Discussion... A trace of rain fell at Guam International Airport yesterday, allowing the KBDI to rise to 95, which is in the low category for fire danger. Dry conditions will remain over the Marianas for the next several days, allowing for KBDI to climb. Debris from Sinlaku will continue to dry out, and this could lead to an increase in fire danger as this dry debris could become fuel for any fires that are started. GUZ001-201800- Guam- 357 AM ChST Mon Apr 20 2026 Today Tonight Tue Cloud Cover Pcldy Pcldy Pcldy Precip Type Showers Showers Showers Chance Rain (%) 20 10 10 Temp 86 77 88 RH % 63 87 62 20FtWnd-Val/AM(mph) Lgt/Var NE 5 20FtWnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 6 Mixing Hgt(ft-msl) 4209 5 4476 Transport Wnd (mph) E 3 SE 0 NE 9 $$ .Forecast for Days 3 Through 7... .TUESDAY NIGHT...Partly cloudy. Lows in the upper 70s. Northeast winds 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs in the upper 80s. Northeast winds up to 15 mph shifting to the east in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 70s. East winds 10 to 15 mph. .THURSDAY...Partly sunny with a slight chance of showers. Highs in the upper 80s. East winds 10 to 15 mph. .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the upper 70s. East winds 10 to 15 mph. .FRIDAY...Partly sunny with a slight chance of showers. Highs in the upper 80s. East winds around 15 mph. .FRIDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the upper 70s. East winds 10 to 20 mph. .SATURDAY...Partly sunny with a slight chance of showers. Highs in the upper 80s. East winds 10 to 20 mph. .SATURDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the upper 70s. East winds 10 to 20 mph. .SUNDAY...Partly sunny with a slight chance of showers. Highs in the upper 80s. Northeast winds 10 to 20 mph. $$