FNUS51 KCAR 180637 FWFCAR Fire Weather Planning Forecast for Northern and Eastern Maine National Weather Service Caribou ME 236 AM EDT Mon May 18 2026 .DISCUSSION... Rest of today expecting continued gusty W-NW winds through sunset with RHs in the 28-40 percent range. RHs recover into the 65-80 percent range tonight with frost developing across the North Woods and portions of Eastern Aroostook County. On Monday, expecting a much drier day, with afternoon relative humidities between 24 to 33 percent. Winds will be lighter on Monday, intially light and variable becoming SW then S late day. Across the Bangor region to Downeast coast afternoon gusts will increase up to around 20 mph. A round of showers and thunderstorms on Tuesday could bring a return of wetting rain across the forecast area Tuesday afternoon. MEZ101-182000- Quebec-Maine Borderlands- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Mcldy Mcldy Mcldy Precip type Showers Tstms Tstms Chance precip (%) 10 50 70 Chance of Thunder (%) 5 15(LTD) 15(LTD) Temp (24h trend) 62 (-1) 50 (+14) 73 RH % (24h trend) 26 (-10) 100 (+29) 67 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) Lgt/Var Lgt/Var W 5 Precip amount 0.01 0.08 0.14 Precip duration 1 2 7 Precip begin 1 PM Continuing Continuing Precip end Continuing Continuing Continuing Mixing hgt(ft-AGL/MSL)2930 2770 Transport wnd (kts) S 8 W 13 Vent rate (kt-ft) 27500 66360 Dispersion Marginal Good CWR 20 50 KBDI <200 <200 <200 Remarks...None. $$ MEZ102-182000- North Woods and St. John Valley- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Pcldy Mcldy Mcldy Precip type Showers Showers Tstms Chance precip (%) 0 40 70 Chance of Thunder (%) 4 12 17(LTD) Temp (24h trend) 64 (-2) 48 (+11) 76 RH % (24h trend) 21 (-15) 99 (+29) 59 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) Lgt/Var Lgt/Var SW 5 Precip amount 0.00 0.05 0.15 Precip duration 2 6 Precip begin 6 PM Continuing Precip end Continuing Continuing Mixing hgt(ft-AGL/MSL)3320 2810 Transport wnd (kts) SW 8 W 11 Vent rate (kt-ft) 34930 70160 Dispersion Marginal Good CWR 10 50 KBDI <200 <200 <200 Remarks...None. $$ MEZ103-182000- Eastern Aroostook- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Pcldy Mcldy Mcldy Precip type None Showers Tstms Chance precip (%) 0 40 70 Chance of Thunder (%) 2 9 19(LTD) Temp (24h trend) 64 (-5) 48 (+9) 76 RH % (24h trend) 22 (-11) 87 (+23) 57 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) Lgt/Var S 5 G17 Lgt/Var Precip amount 0.00 0.03 0.15 Precip duration 2 5 Precip begin 7 PM Continuing Precip end Continuing Continuing Mixing hgt(ft-AGL/MSL)3580 2240 Transport wnd (kts) SW 8 SW 8 Vent rate (kt-ft) 35850 25600 Dispersion Fair Marginal CWR 0 10 90 KBDI <200 <200 <200 Remarks...None. $$ MEZ105-182000- Central Highlands- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Mcldy Pcldy Pcldy Precip type Showers Showers Tstms Chance precip (%) 20 20 70 Chance of Thunder (%) 8 6 23(LTD) Temp (24h trend) 65 (-4) 47 (+5) 82 RH % (24h trend) 27 (-15) 91 (+23) 54 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) S 5 S 5 W 6 Precip amount 0.02 0.01 0.10 Precip duration 0 1 5 Precip begin 2 PM Continuing Continuing Precip end Continuing Continuing Continuing Mixing hgt(ft-AGL/MSL)2770 3810 Transport wnd (kts) S 10 W 15 Vent rate (kt-ft) 36820 98000 Dispersion Fair Very Good CWR 20 20 40 KBDI <200 <200 <200 Remarks...None. $$ MEZ106-182000- Central Maine North of Bangor- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Mcldy Pcldy Pcldy Precip type Showers Showers Tstms Chance precip (%) 20 20 60 Chance of Thunder (%) 6 9 26(ELEV) Temp (24h trend) 66 (-8) 48 (+4) 84 RH % (24h trend) 23 (-13) 84 (+22) 48 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) Lgt/Var Lgt/Var SW 5 Precip amount 0.01 0.01 0.06 Precip duration 0 1 4 Precip begin 4 PM Continuing Continuing Precip end Continuing Continuing Continuing Mixing hgt(ft-AGL/MSL)3100 3690 Transport wnd (kts) SW 8 SW 13 Vent rate (kt-ft) 36160 91500 Dispersion Fair Very Good CWR 10 10 40 KBDI <200 <200 <200 Remarks...None. $$ MEZ108-182000- Interior Downeast- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Pcldy Pcldy Pcldy Precip type Showers Showers Tstms Chance precip (%) 20 20 50 Chance of Thunder (%) 4 11 20(LTD) Temp (24h trend) 68 (-8) 47 (0) 83 RH % (24h trend) 22 (-12) 91 (+29) 48 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) Lgt/Var Lgt/Var SW 6 Precip amount 0.01 0.00 0.02 Precip duration 0 1 1 Precip begin 4 PM Continuing Continuing Precip end Continuing Continuing Continuing Mixing hgt(ft-AGL/MSL)3270 3560 Transport wnd (kts) SW 8 SW 13 Vent rate (kt-ft) 28650 68320 Dispersion Marginal Good CWR 10 10 20 KBDI <200 <200 <200 Remarks...None. $$ MEZ112-182000- Coastal Downeast- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Pcldy Pcldy Pcldy Precip type Showers Showers Tstms Chance precip (%) 20 20 50 Chance of Thunder (%) 4 11 16(LTD) Temp (24h trend) 66 (-12) 46 (-1) 77 RH % (24h trend) 22 (-10) 98 (+33) 55 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) Lgt/Var Lgt/Var S 5 Precip amount 0.00 0.00 0.01 Precip duration 0 1 1 Precip begin 5 PM 8 PM Continuing Precip end 6 PM Continuing Continuing Mixing hgt(ft-AGL/MSL)3070 2320 Transport wnd (kts) W 6 SW 11 Vent rate (kt-ft) 22760 35910 Dispersion Marginal Fair CWR 10 KBDI <200 <200 <200 Remarks...None. $$ MEZ113-182000- Bangor Region- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Pcldy Pcldy Pcldy Precip type None None Tstms Chance precip (%) 0 0 50 Chance of Thunder (%) 7 8 24(LTD) Temp (24h trend) 66 (-11) 48 (0) 86 RH % (24h trend) 28 (-4) 88 (+26) 45 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) S 5 S 5 SW 7 G17 Precip amount 0.00 0.00 0.03 Precip duration 1 Precip begin 12 PM Precip end Continuing Mixing hgt(ft-AGL/MSL)3440 4270 Transport wnd (kts) SW 10 W 16 Vent rate (kt-ft) 37590 91390 Dispersion Fair Very Good CWR 0 0 20 KBDI <200 <200 <200 Remarks...None. $$ MEZ114-182000- Eastern Penobscot Bay Coast- 236 AM EDT Mon May 18 2026 Today Tonight Tue Cloud cover Pcldy Pcldy Pcldy Precip type None None Tstms Chance precip (%) 0 0 50 Chance of Thunder (%) 5 9 19(LTD) Temp (24h trend) 66 (-13) 47 (-3) 81 RH % (24h trend) 27 (-6) 97 (+33) 49 20ftWnd-val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-rdg/PM(mph) S 5 Lgt/Var SW 7 G20 Precip amount 0.00 0.00 0.01 Precip duration 1 Precip begin 12 PM Precip end Continuing Mixing hgt(ft-AGL/MSL)3020 2330 Transport wnd (kts) SW 6 SW 12 Vent rate (kt-ft) 18690 39950 Dispersion Poor Fair CWR 0 0 10 KBDI <200 <200 <200 Remarks...None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .TUESDAY NIGHT...Mostly cloudy with a chance of showers. Lows in the lower 60s. Southwest winds around 10 mph. .WEDNESDAY...Mostly sunny with a chance of showers. Highs around 80. West winds around 15 mph. .WEDNESDAY NIGHT...Mostly clear. Colder. Lows in the lower 40s. Northwest winds around 15 mph. .THURSDAY...Sunny. Much cooler. Highs in the mid 50s. Northwest winds around 15 mph. .THURSDAY NIGHT...Clear. Lows in the upper 30s. Northwest winds around 10 mph. .FRIDAY...Sunny. Highs in the lower 60s. Northwest winds around 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows around 40. West winds around 5 mph. .SATURDAY...Mostly sunny. Highs in the lower 60s. South winds around 5 mph. .SATURDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Southeast winds around 5 mph. .SUNDAY...Partly sunny. Highs in the lower 60s. Southeast winds around 5 mph. .OUTLOOK 8 TO 14 DAYS... Temperatures above normal. Precipitation near normal. $$