Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
917
FNUS51 KGYX 031747
FWFGYX
Fire Weather Planning Forecast for Western Maine and New Hampshire
National Weather Service Gray ME
147 PM EDT Wed Sep 3 2025
.DISCUSSION...
Scattered showers and isolated storms are possible this
afternoon, mainly in the mountains and foothills, with only
isolated pockets of wetting rains. Southerly winds may gust to 20
to 25 mph on Thursday with minimum relative humidity dropping to between
35 and 40 percent across NH and then 40 to 50 percent over much
of the Maine interior. The next chance of any wetting rains
arrives Thursday night into early Friday potentially followed by
another opportunity on Saturday. Drier conditions return Sunday
into early next week.
MEZ104-040830-
Western Maine Mountains and Foothills-
Including the cities of Farmington, Rumford, Bethel, Eustis,
Jackman, and Carrabassett Valley
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type Tstms None Showers Showers
Chance of Thunder (%) 21(LTD) 0(None) 11 13
Chance precip (%) 20 0 70 60
Temp (24h trend) 47 (-2) 77 (+3) 51 75
RH % (24h trend) 100 (+4) 37 (-11) 100 63
20ftWnd - AM(mph) S 8 G19 S 9 G21
20ftWnd - PM(mph) S 5 S 11 G27 S 11 G27 S 10 G19
Precip amount 0.01 0.00 0.07 0.06
Precip duration 0 3 4
Precip begin 6 PM 10 PM Continuing
Precip end 9 PM Continuing Continuing
Mixing hgt(ft-AGL) 6160(UNST) 3690(UNST)
Transport wnd (mph) S 15 S 16
Vent rate (kt-ft) 80080 51660
CWR 10 0 30 30
KBDI 401-500 401-500 401-500 401-500
Remarks...None.
$$
MEZ107-040830-
Kennebec River Valley-
Including the cities of Augusta, Waterville, Skowhegan, Auburn,
Lewiston, Liberty, and Livermore
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Pcldy Pcldy Pcldy Pcldy
Precip type None None Showers Tstms
Chance of Thunder (%) 7 0(None) 12 15(LTD)
Chance precip (%) 0 0 30 30
Temp (24h trend) 49 (-1) 78 (+2) 54 77
RH % (24h trend) 100 (0) 48 (-8) 100 74
20ftWnd - AM(mph) S 5 S 11 G21
20ftWnd - PM(mph) S 8 S 10 G25 S 10 G23 S 12 G25
Precip amount 0.00 0.00 0.04 0.04
Precip duration 1 2
Precip begin 11 PM Continuing
Precip end Continuing 6 PM
Mixing hgt(ft-AGL) 4890(UNST) 2590(MRGL)
Transport wnd (mph) S 13 S 16
Vent rate (kt-ft) 53790 36260
CWR 0 0 20 20
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
MEZ109-040830-
Lakes Region-
Including the cities of Sanford, North Windham, Gray,
New Glouceser, Fryeburg, South Paris, and Hiram
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 7 0(None) 13 14
Chance precip (%) 0 0 60 50
Temp (24h trend) 48 (-2) 79 (+2) 54 80
RH % (24h trend) 100 (+4) 42 (-5) 100 64
20ftWnd - AM(mph) S 5 S 10 G21
20ftWnd - PM(mph) SE 8 SE 12 G25 SE 11 G23 S 10 G23
Precip amount 0.00 0.00 0.07 0.05
Precip duration 2 2
Precip begin 10 PM Continuing
Precip end Continuing Continuing
Mixing hgt(ft-AGL) 6080(UNST) 3160(UNST)
Transport wnd (mph) S 13 S 14
Vent rate (kt-ft) 66880 37920
CWR 0 0 30 30
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
MEZ110-040830-
Beaches and Casco Bay-
Including the cities of Kittery, York, Kennebunk, Scarborough,
Portland, Yarmouth, Freeport, Brunswick, Topsham,
Boothbay Harbor, and Damariscotta
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 2 0(None) 13 13
Chance precip (%) 0 0 40 30
Temp (24h trend) 51 (-1) 77 (+3) 57 79
RH % (24h trend) 100 (+1) 54 (-8) 100 69
20ftWnd - AM(mph) S 6 G17 S 12 G25
20ftWnd - PM(mph) S 8 S 11 G25 S 10 G23 S 13 G26
Precip amount 0.00 0.00 0.04 0.03
Precip duration 1 2
Precip begin 11 PM Continuing
Precip end Continuing 6 PM
Mixing hgt(ft-AGL) 2520(MRGL) 2330(MRGL)
Transport wnd (mph) S 12 S 15
Vent rate (kt-ft) 25200 30290
CWR 0 0 20 20
KBDI 401-500 501-600 501-600 501-600
Remarks...None.
$$
MEZ111-040830-
Mid-Coast-
Including the cities of Waldoboro, Rockland, Camden,
Lincolnville, Belfast, Searsport, Islesboro, and Vinalhaven
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Pcldy Pcldy Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 2 0(None) 9 12
Chance precip (%) 0 0 20 20
Temp (24h trend) 51 (0) 75 (+3) 55 76
RH % (24h trend) 100 (0) 62 (-9) 100 79
20ftWnd - AM(mph) S 6 S 11 G23
20ftWnd - PM(mph) S 6 S 9 G21 S 8 G19 S 12 G25
Precip amount 0.00 0.00 0.01 0.01
Precip duration 1 1
Precip begin 1 AM Continuing
Precip end Continuing 3 PM
Mixing hgt(ft-AGL) 2500(MRGL) 2400(MRGL)
Transport wnd (mph) S 10 S 17
Vent rate (kt-ft) 22500 36000
CWR 0 0
KBDI 401-500 401-500 401-500 401-500
Remarks...None.
$$
NHZ021-040830-
Coos County-
Including the cities of Errol, Millsfield, Colebrook, Berlin,
Dummer, Milan, York Pond, and Lancaster
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 16(LTD) 0(None) 12 12
Chance precip (%) 0 0 90 70
Temp (24h trend) 45 (-5) 79 (+7) 51 75
RH % (24h trend) 100 (+6) 37 (-10) 100 58
20ftWnd - AM(mph) S 8 G21 S 8 G21
20ftWnd - PM(mph) LGT/VAR S 12 G27 SE 11 G28 S 10 G23
Precip amount 0.00 0.00 0.13 0.08
Precip duration 4 5
Precip begin 9 PM Continuing
Precip end Continuing Continuing
Mixing hgt(ft-AGL) 6810(UNST) 4130(UNST)
Transport wnd (mph) S 17 S 17
Vent rate (kt-ft) 102150 61950
CWR 0 0 50 50
KBDI 401-500 401-500 401-500 401-500
Remarks...None.
$$
NHZ022-040830-
White Mountians-
Including the cities of Lincoln, Littleton, Thornton,
Waterville Valley, Woodstock, Jackson, North Conway, Conway,
and Crawford Notch
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 9 0(None) 13 13
Chance precip (%) 0 0 80 70
Temp (24h trend) 46 (-4) 79 (+4) 53 77
RH % (24h trend) 100 (+6) 37 (-6) 100 61
20ftWnd - AM(mph) S 6 G19 S 8 G21
20ftWnd - PM(mph) LGT/VAR S 10 G25 SE 10 G26 S 9 G21
Precip amount 0.00 0.00 0.14 0.09
Precip duration 4 5
Precip begin 9 PM Continuing
Precip end Continuing Continuing
Mixing hgt(ft-AGL) 7070(UNST) 3560(UNST)
Transport wnd (mph) S 16 S 15
Vent rate (kt-ft) 98980 46280
CWR 0 0 60 60
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
NHZ023-040830-
Central Lakes-
Including the cities of Lebanon, Plymouth, Laconia, Wolfeboro,
Alton, and Ossipee
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 7 1 14 14
Chance precip (%) 0 0 70 60
Temp (24h trend) 49 (-2) 79 (+1) 55 80
RH % (24h trend) 100 (+5) 37 (-3) 100 59
20ftWnd - AM(mph) S 5 S 9 G19
20ftWnd - PM(mph) S 5 S 10 G23 SE 10 G21 S 10 G19
Precip amount 0.00 0.00 0.09 0.05
Precip duration 3 3
Precip begin 9 PM Continuing
Precip end Continuing Continuing
Mixing hgt(ft-AGL) 7070(UNST) 3920(UNST)
Transport wnd (mph) S 15 S 16
Vent rate (kt-ft) 91910 54880
CWR 0 0 30 30
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
NHZ024-040830-
Lake Sunapee and Monadnocks-
Including the cities of Claremont, Keene, and Jaffrey
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 2 1 13 13
Chance precip (%) 0 0 70 60
Temp (24h trend) 48 (-3) 79 (+1) 55 80
RH % (24h trend) 100 (+6) 39 (-1) 100 58
20ftWnd - AM(mph) S 5 S 8 G17
20ftWnd - PM(mph) LGT/VAR S 9 G21 S 9 G21 SW 10 G19
Precip amount 0.00 0.00 0.07 0.04
Precip duration 4 2
Precip begin 9 PM Continuing
Precip end Continuing Continuing
Mixing hgt(ft-AGL) 6820(UNST) 4200(UNST)
Transport wnd (mph) S 15 SW 20
Vent rate (kt-ft) 88660 71400
CWR 0 0 30 30
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
NHZ025-040830-
Merrimack Valley-
Including the cities of Manchester, Nashua, Weare, and Derry
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 1 0(None) 13 12
Chance precip (%) 0 0 50 40
Temp (24h trend) 51 (-2) 81 (+1) 57 83
RH % (24h trend) 100 (+7) 40 (+1) 100 57
20ftWnd - AM(mph) S 5 S 8 G17
20ftWnd - PM(mph) S 6 S 10 G21 S 9 G21 S 10 G21
Precip amount 0.00 0.00 0.05 0.04
Precip duration 1 2
Precip begin 10 PM Continuing
Precip end Continuing 6 PM
Mixing hgt(ft-AGL) 7170(UNST) 4580(UNST)
Transport wnd (mph) S 13 SW 18
Vent rate (kt-ft) 78870 73280
CWR 0 0 20 20
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
NHZ026-040830-
Seacoast-
Including the cities of Portsmouth, Dover, Hampton, and Exeter
147 PM EDT Wed Sep 3 2025
Tonight Thu Thu Night Fri
Cloud cover Mclear Mclear Pcldy Pcldy
Precip type None None Showers Showers
Chance of Thunder (%) 1 0(None) 14 11
Chance precip (%) 0 0 50 40
Temp (24h trend) 51 (-2) 79 (0) 58 83
RH % (24h trend) 100 (+3) 44 (-3) 100 56
20ftWnd - AM(mph) SW 5 S 9 G19
20ftWnd - PM(mph) SE 9 SE 10 G21 S 9 G21 S 10 G21
Precip amount 0.00 0.00 0.04 0.03
Precip duration 1 2
Precip begin 11 PM Continuing
Precip end Continuing 6 PM
Mixing hgt(ft-AGL) 5210(UNST) 4240(UNST)
Transport wnd (mph) S 12 S 16
Vent rate (kt-ft) 52100 59360
CWR 0 0 20 20
KBDI 501-600 501-600 501-600 501-600
Remarks...None.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. South winds
5 to 10 mph.
.SATURDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Southwest winds 5 to
10 mph. Daytime humidity values high.
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 50s. West winds 5 to 10 mph.
.SUNDAY...Partly sunny with a chance of showers. Highs around 70.
West winds around 5 mph. Daytime humidity values moderate.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 40s. West winds
around 5 mph.
.MONDAY...Mostly sunny. Highs in the upper 60s. Northwest winds
5 to 10 mph. Daytime humidity values moderate.
.MONDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.TUESDAY...Sunny. Highs in the upper 60s. West winds around
5 mph. Daytime humidity values moderate.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. West winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph. Daytime humidity values moderate.
.OUTLOOK 8 TO 14 DAYS...
Temperatures below normal. Precipitation below normal.
$$