FNMY50 PGUM 201819 FWFGUM Fire Weather Planning Forecast for Guam National Weather Service Tiyan GU 419 AM ChST Sat Mar 21 2026 .Discussion... No rain fell at Guam International Airport yesterday, so the KBDI slightly increased to 135. This is in the low category for fire danger. A drier pattern will continue over the next several days, so KBDI should gradually recover through the weekend. The next wetting rain may occur as early as Monday as a wetter pattern sets up near Guam for next week. GUZ001-211830- Guam- 419 AM ChST Sat Mar 21 2026 Today Tonight Sun Cloud Cover Pcldy Pcldy Pcldy Precip Type Showers Showers Showers Chance Rain (%) 20 10 0 Temp 86 74 87 RH % 67 100 62 20FtWnd-Val/AM(mph) E 11 G22 NE 15 G26 20FtWnd-Rdg/PM(mph) E 14 G24 NE 14 G24 NE 17 G27 Mixing Hgt(ft-msl) 6371 245 6066 Transport Wnd (mph) E 21 NE 12 NE 26 $$ .Forecast for Days 3 Through 7... .SUNDAY NIGHT...Partly cloudy with isolated showers. Lows in the mid 70s. Northeast winds 10 to 15 mph. .MONDAY...Mostly sunny with isolated showers. Highs in the mid 80s. Northeast winds 10 to 20 mph. .MONDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the mid 70s. Northeast winds 10 to 15 mph. .TUESDAY...Partly sunny with a slight chance of showers. Highs in the mid 80s. Northeast winds 10 to 15 mph. .TUESDAY NIGHT...Mostly cloudy with chance of showers. Lows in the mid 70s. Northeast winds 10 to 15 mph. .WEDNESDAY...Partly sunny with a slight chance of showers. Highs in the mid 80s. Northeast winds 10 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the mid 70s. Northeast winds 10 to 15 mph. .THURSDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. Northeast winds 10 to 15 mph. .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. Northeast winds 5 to 15 mph. $$