FNMY50 PGUM 211805 FWFGUM Fire Weather Planning Forecast for Guam National Weather Service Tiyan GU 405 AM ChST Sun Mar 22 2026 .Discussion... 0.02 inches of rain fell at Guam International Airport yesterday, so the KBDI slightly increased to 155. This is still in the low category for fire danger. A drier pattern will continue today then look for increased showers Monday through Wednesday night, then conditions could turn drier again. GUZ001-221815- Guam- 405 AM ChST Sun Mar 22 2026 Today Tonight Mon Cloud Cover Pcldy Pcldy Mcldy Precip Type Showers Showers Tstms Chance Rain (%) 20 10 40 Temp 85 73 86 RH % 61 100 69 20FtWnd-Val/AM(mph) NE 13 G21 NE 13 G21 20FtWnd-Rdg/PM(mph) NE 15 G22 NE 13 G20 E 15 G23 Mixing Hgt(ft-msl) 4295 195 4419 Transport Wnd (mph) NE 26 NE 8 E 24 $$ .Forecast for Days 3 Through 7... .MONDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the lower 70s. East winds 10 to 20 mph. .TUESDAY...Partly sunny with scattered showers. Highs in the mid 80s. East winds 10 to 15 mph. .TUESDAY NIGHT...Mostly cloudy with chance of showers. Lows in the mid 70s. East winds 5 to 10 mph. .WEDNESDAY...Partly sunny with chance of showers and a slight chance of thunderstorms. Highs in the mid 80s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly cloudy with chance of showers. Lows in the mid 70s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. Northeast winds 5 to 10 mph. .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly sunny with a slight chance of showers. Highs in the mid 80s. Northeast winds 5 to 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 70s. Northeast winds 5 to 10 mph. .SATURDAY...Mostly sunny. Highs in the mid 80s. Northeast winds 5 to 15 mph. $$