FNMY50 PGUM 181757 FWFGUM Fire Weather Planning Forecast for Guam National Weather Service Tiyan GU 357 AM ChST Sun Apr 19 2026 .Discussion... 0.01 inches of rain fell at Guam International Airport yesterday, allowing the KBDI to rise to 67, 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. GUZ001-191800- Guam- 357 AM ChST Sun Apr 19 2026 Today Tonight Mon Cloud Cover Pcldy Pcldy Pcldy Precip Type Showers Showers Showers Chance Rain (%) 10 10 10 Temp 87 76 86 RH % 65 93 65 20FtWnd-Val/AM(mph) Lgt/Var Lgt/Var 20FtWnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Mixing Hgt(ft-msl) 6491 1 6619 Transport Wnd (mph) SW 7 SE 0 E 2 $$ .Forecast for Days 3 Through 7... .MONDAY NIGHT...Partly cloudy. Lows in the upper 70s. Northeast winds up to 5 mph. .TUESDAY...Mostly sunny. Highs in the upper 80s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 70s. Northeast winds 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs in the upper 80s. East winds 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the upper 70s. East winds 5 to 10 mph. .THURSDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. East winds 5 to 15 mph. .THURSDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the upper 70s. East winds 10 to 15 mph. .FRIDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. East winds 10 to 15 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 70s. East winds 10 to 15 mph. .SATURDAY...Mostly sunny. Highs in the upper 80s. East winds 10 to 15 mph. $$