FNUS51 KGYX 181908 FWFGYX Fire Weather Planning Forecast for Western Maine and New Hampshire National Weather Service Gray ME 308 PM EDT Mon May 18 2026 .DISCUSSION... Tuesday and Wednesday will be hot and breezy with temperatures well into the 80s and into low 90s in southern NH on Tuesday. Dewpoints will be on the increase that will help keep min RH in the 30 to 50 percent range. West to southwest winds will gust 25 to 30 mph both days. A slow moving cold front will bring chances for widely scattered thunderstorms Tuesday and additional chances Wednesday when the front crosses. Cooler and drier conditions will follow the front for Thursday and Friday. MEZ104-190830- Western Maine Mountains and Foothills- Including the cities of Farmington, Rumford, Bethel, Eustis, Jackman, and Carrabassett Valley 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Pcldy Pcldy Pcldy Pcldy Precip type None Tstms Tstms Showers Chance of Thunder (%) 3 27(ELEV) 20(LTD) 10 Chance precip (%) 0 50 30 30 Temp (24h trend) 47 (+5) 85 (+20) 59 80 RH % (24h trend) 92 (+9) 45 (-4) 89 37 20ftWnd - AM(mph) SW 12 G34 W 19 G37 20ftWnd - PM(mph) S 9 G23 W 13 G35 W 12 G32 W 20 G41 Precip amount 0.00 0.03 0.01 0.00 Precip duration 2 1 1 Precip begin 8 AM Continuing 6 AM Precip end Continuing 4 AM 4 PM Mixing hgt(ft-AGL) 5820(UNST) 5360(UNST) Transport wnd (mph) W 25 W 28 Vent rate (kt-ft) 128040 128640 CWR 0 10 10 KBDI <200 <200 <200 <200 Remarks...None. $$ MEZ107-190830- Kennebec River Valley- Including the cities of Augusta, Waterville, Skowhegan, Auburn, Lewiston, Liberty, and Livermore 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Pcldy Pcldy Precip type None Tstms Tstms Tstms Chance of Thunder (%) 3 21(LTD) 18(LTD) 15(LTD) Chance precip (%) 0 30 20 30 Temp (24h trend) 48 (+1) 89 (+23) 67 86 RH % (24h trend) 88 (+1) 41 (-1) 74 37 20ftWnd - AM(mph) SW 6 SW 13 G26 20ftWnd - PM(mph) S 9 G19 W 11 G23 SW 9 G19 W 16 G29 Precip amount 0.00 0.03 0.01 0.00 Precip duration 1 0 1 Precip begin 12 PM Continuing 10 AM Precip end Continuing 3 AM 6 PM Mixing hgt(ft-AGL) 6170(UNST) 5300(UNST) Transport wnd (mph) W 22 W 22 Vent rate (kt-ft) 117230 100700 CWR 0 10 10 KBDI <200 <200 <200 <200 Remarks...None. $$ MEZ109-190830- Lakes Region- Including the cities of Sanford, North Windham, Gray,New Glouceser, Fryeburg, South Paris, and Hiram 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Pcldy Pcldy Precip type None Tstms Tstms Tstms Chance of Thunder (%) 3 15(LTD) 19(LTD) 16(LTD) Chance precip (%) 0 30 20 30 Temp (24h trend) 47 (-4) 90 (+22) 67 86 RH % (24h trend) 91 (+4) 37 (-8) 70 37 20ftWnd - AM(mph) SW 10 G19 W 14 G28 20ftWnd - PM(mph) SE 8 G17 W 13 G26 SW 11 G21 W 16 G29 Precip amount 0.00 0.01 0.01 0.00 Precip duration 1 0 1 Precip begin 2 PM Continuing 11 AM Precip end Continuing 9 PM 6 PM Mixing hgt(ft-AGL) 6940(UNST) 5920(UNST) Transport wnd (mph) W 25 W 26 Vent rate (kt-ft) 152680 136160 CWR 0 KBDI <200 <200 <200 <200 Remarks...None. $$ MEZ110-190830- Beaches and Casco Bay- Including the cities of Kittery, York, Kennebunk, Scarborough, Portland, Yarmouth, Freeport, Brunswick, Topsham, Boothbay Harbor, and Damariscotta 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Mclear Pcldy Precip type None Showers Tstms Tstms Chance of Thunder (%) 3 13 18(LTD) 16(LTD) Chance precip (%) 0 20 20 30 Temp (24h trend) 46 (-6) 89 (+24) 63 86 RH % (24h trend) 96 (+12) 40 (-10) 77 40 20ftWnd - AM(mph) SW 8 G17 SW 12 G25 20ftWnd - PM(mph) SE 5 SW 11 G23 SW 8 G17 W 13 G26 Precip amount 0.00 0.01 0.01 0.00 Precip duration 0 0 1 Precip begin 3 PM Continuing 12 PM Precip end Continuing 9 PM 6 PM Mixing hgt(ft-AGL) 5540(UNST) 5520(UNST) Transport wnd (mph) SW 18 W 23 Vent rate (kt-ft) 88640 110400 CWR 0 KBDI <200 <200 <200 <200 Remarks...None. $$ MEZ111-190830- Mid-Coast- Including the cities of Waldoboro, Rockland, Camden, Lincolnville, Belfast, Searsport, Islesboro, and Vinalhaven 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Pcldy Pcldy Pcldy Pcldy Precip type None Tstms Showers Tstms Chance of Thunder (%) 3 17(LTD) 18(LTD) 15(LTD) Chance precip (%) 0 30 20 30 Temp (24h trend) 46 (-3) 88 (+26) 62 87 RH % (24h trend) 96 (+16) 43 (-5) 83 43 20ftWnd - AM(mph) SW 6 G17 SW 12 G25 20ftWnd - PM(mph) S 5 SW 10 G21SW 8 G19 W 13 G26 Precip amount 0.00 0.03 0.02 0.00 Precip duration 1 0 1 Precip begin 12 PM Continuing 10 AM Precip end Continuing 9 PM 6 PM Mixing hgt(ft-AGL) 3910(UNST) 4680(UNST) Transport wnd (mph) SW 18 W 21 Vent rate (kt-ft) 62560 84240 CWR 0 20 20 KBDI <200 <200 <200 <200 Remarks...None. $$ NHZ021-190830- Coos County- Including the cities of Errol, Millsfield, Colebrook, Berlin, Dummer, Milan, York Pond, and Lancaster 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Pcldy Pcldy Pcldy Pcldy Precip type None Tstms Tstms Tstms Chance of Thunder (%) 4 25(ELEV) 20(LTD) 14 Chance precip (%) 0 50 30 50 Temp (24h trend) 53 (+11) 82 (+12) 59 75 RH % (24h trend) 91 (+4) 48 (-6) 88 42 20ftWnd - AM(mph) SW 14 G44 W 18 G42 20ftWnd - PM(mph) S 9 G32 W 16 G44 W 13 G37 W 20 G42 Precip amount 0.00 0.05 0.02 0.05 Precip duration 2 1 2 Precip begin 8 AM Continuing Continuing Precip end Continuing Continuing 5 PM Mixing hgt(ft-AGL) 4970(UNST) 5130(UNST) Transport wnd (mph) W 25 W 25 Vent rate (kt-ft) 109340 112860 CWR 0 20 20 10 KBDI <200 <200 <200 <200 Remarks...None. $$ NHZ022-190830- White Mountians- Including the cities of Lincoln, Littleton, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Conway, and Crawford Notch 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Pcldy Pcldy Precip type None Tstms None Tstms Chance of Thunder (%) 3 19(LTD) 20(LTD) 18(LTD) Chance precip (%) 0 30 0 50 Temp (24h trend) 52 (+4) 87 (+15) 62 81 RH % (24h trend) 92 (+8) 40 (-7) 84 39 20ftWnd - AM(mph) SW 12 G42 W 17 G37 20ftWnd - PM(mph) S 8 G27 W 14 G43 W 12 G36 W 16 G37 Precip amount 0.00 0.05 0.00 0.05 Precip duration 1 2 Precip begin 12 PM 6 AM Precip end 6 PM 6 PM Mixing hgt(ft-AGL) 5730(UNST) 4800(UNST) Transport wnd (mph) W 23 W 24 Vent rate (kt-ft) 114600 100800 CWR 0 20 0 20 KBDI <200 <200 <200 <200 Remarks...None. $$ NHZ023-190830- Central Lakes- Including the cities of Lebanon, Plymouth, Laconia, Wolfeboro, Alton, and Ossipee 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Pcldy Pcldy Precip type None Tstms None Tstms Chance of Thunder (%) 3 16(LTD) 20(LTD) 17(LTD) Chance precip (%) 0 30 0 40 Temp (24h trend) 51 (0) 90 (+14) 65 84 RH % (24h trend) 89 (+6) 34 (-8) 75 38 20ftWnd - AM(mph) SW 11 G23 W 16 G32 20ftWnd - PM(mph) SE 6 W 14 G28 SW 11 G25 W 16 G29 Precip amount 0.00 0.03 0.00 0.01 Precip duration 1 2 Precip begin 1 PM 9 AM Precip end 6 PM 6 PM Mixing hgt(ft-AGL) 7030(UNST) 5160(UNST) Transport wnd (mph) W 25 W 26 Vent rate (kt-ft) 154660 118680 CWR 0 10 0 KBDI <200 <200 <200 <200 Remarks...None. $$ NHZ024-190830- Lake Sunapee and Monadnocks- Including the cities of Claremont, Keene, and Jaffrey 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Pcldy Pcldy Precip type None Tstms None Tstms Chance of Thunder (%) 3 16(LTD) 19(LTD) 18(LTD) Chance precip (%) 0 30 0 40 Temp (24h trend) 58 (+5) 91 (+9) 65 84 RH % (24h trend) 88 (+1) 34 (-8) 74 39 20ftWnd - AM(mph) SW 9 G19 W 12 G25 20ftWnd - PM(mph) S 6 W 11 G23 SW 9 G21 W 13 G26 Precip amount 0.00 0.02 0.00 0.00 Precip duration 1 2 Precip begin 2 PM 9 AM Precip end 6 PM 6 PM Mixing hgt(ft-AGL) 7140(UNST) 5150(UNST) Transport wnd (mph) W 25 W 26 Vent rate (kt-ft) 157080 118450 CWR 0 0 KBDI <200 <200 <200 <200 Remarks...None. $$ NHZ025-190830- Merrimack Valley- Including the cities of Manchester, Nashua, Weare, and Derry 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Mclear Pcldy Pcldy Precip type None Showers Tstms Tstms Chance of Thunder (%) 2 16(LTD) 19(LTD) 17(LTD) Chance precip (%) 0 20 20 50 Temp (24h trend) 54 (-1) 93 (+17) 68 88 RH % (24h trend) 90 (+4) 31 (-9) 66 38 20ftWnd - AM(mph) SW 10 G19 W 13 G26 20ftWnd - PM(mph) SE 6 W 13 G26 SW 10 G21 W 16 G29 Precip amount 0.00 0.00 0.00 0.00 Precip duration 0 0 1 Precip begin 4 PM Continuing 11 AM Precip end Continuing 8 PM 6 PM Mixing hgt(ft-AGL) 7880(UNST) 6200(UNST) Transport wnd (mph) W 25 W 28 Vent rate (kt-ft) 173360 148800 CWR 0 KBDI <200 <200 <200 <200 Remarks...None. $$ NHZ026-190830- Seacoast- Including the cities of Portsmouth, Dover, Hampton, and Exeter 308 PM EDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud cover Mclear Pcldy Pcldy Pcldy Precip type None None Tstms Tstms Chance of Thunder (%) 2 14 18(LTD) 16(LTD) Chance precip (%) 0 0 20 50 Temp (24h trend) 52 (-3) 92 (+24) 68 87 RH % (24h trend) 94 (+8) 33 (-15) 67 39 20ftWnd - AM(mph) SW 8 G17 W 12 G25 20ftWnd - PM(mph) E 5 W 12 G23 SW 9 G17 W 14 G28 Precip amount 0.00 0.00 0.00 0.01 Precip duration 0 1 Precip begin 6 PM 12 PM Precip end 9 PM 6 PM Mixing hgt(ft-AGL) 7810(UNST) 6470(UNST) Transport wnd (mph) W 23 W 28 Vent rate (kt-ft) 156200 155280 CWR 0 0 KBDI <200 <200 <200 <200 Remarks...None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. Northwest winds 10 to 15 mph. .THURSDAY...Sunny. Highs around 60. Northwest winds 10 to 15 mph. Daytime humidity values moderate. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. Northwest winds 5 to 10 mph. .FRIDAY...Mostly sunny. Highs in the mid 60s. West winds 10 to 15 mph. Daytime humidity values moderate. .FRIDAY NIGHT...Mostly cloudy. Lows in the lower 40s. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers. Highs in the lower 60s. Southeast winds around 5 mph. Daytime humidity values moderate. .SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in the lower 40s. Southeast winds around 5 mph. .SUNDAY...Partly sunny with a chance of showers. Highs in the lower 60s. Southeast winds around 5 mph. Daytime humidity values moderate. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in the mid 40s. Southeast winds around 5 mph. .MONDAY...Partly sunny with a chance of showers. Highs in the lower 60s. Southeast winds around 5 mph. Daytime humidity values moderate. .OUTLOOK 8 TO 14 DAYS... Temperatures above normal. Precipitation near normal. $$