Spot Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
947
FNUS71 KGYX 221532
FWSGYX
Spot Forecast for Rattlesnake...US Forest Service
National Weather Service Gray ME
1132 AM EDT Sat Aug 22 2026
Forecast is based on forecast start time of 1200 EDT on August 22.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact our office at (207) 688-3224, if you have questions
or concerns with this forecast.
Mainly cloudy skies will persist through the remainder of today
with moderate afternoon humidity into the 65-75 percent range.
Winds will be light out of the northeast at 5-15 mph. Other than
an isolated light shower, mainly dry conditions will prevail
through tonight with strong RH recovery and light and variable
winds. Sunday will feature cloudy skies with scattered showers and
thunderstorms during the afternoon and early evening. Rainfall
amounts will generally be 1/4 inch or less but locally higher
amounts are possible within any thunderstorms along with locally
stronger winds.
.REST OF TODAY...
Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
showers late in the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 73.
Min humidity........53 percent.
Dewpoint............55.
Max apparent temp...71.
Wind (20 ft)........Light winds.
Mixing height.......3700 ft AGL.
Transport winds.....East 12 to 15 mph.
Smoke dispersal.....Fair (24100 knot-ft) early in the morning
increasing to good (48600 knot-ft) in the
afternoon.
LVORI...............2.
ADI.................36 decreasing to 27 late in the afternoon.
CEILING (KFT).......4.5 decreasing to 2.7.
TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........81 85 77 71 75 70
Weather cov..... SCH SCH SCH
Weather type.... RW RW RW
Tstm cov........NO NO NO NO NO NO
CWR.............0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0
Temp............71 71 71 71 70 70
Dewpoint........55 55 54 55 55 56
RH..............57 57 55 57 59 61
Aparnt tmp (F)..71 71 71 71 70 70
20 FT wind dir..E E E E E SE
20 FT wind spd..7 6 7 7 7 7
20 FT wind gust.13 13 13 13 13 13
Mix hgt (kft)...3.7 3.5 3.5 3.0 2.7 2.4
Transp wind dir.E E E E E E
Transp wind spd.15 14 13 13 13 12
LVORI...........1 1 1 1 2 2
ADI.............40 36 33 31 29 25
Vrate kt-ft/1K..49 42 38 34 30 24
Ventrate Cat....FR FR PR PR PR PR
Ceiling (kft)...4.5 4.5 3.5 3.5 3.5 2.7
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent). Slight chance of
rain showers through the night.
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 55.
Max humidity........100 percent.
Dewpoint............57.
Max apparent temp...69.
Wind (20 ft)........Light winds.
Mixing height.......500 ft AGL.
Transport winds.....East 6 to 12 mph.
Smoke dispersal.....Fair (20600 knot-ft) early in the evening
decreasing to poor (2300 knot-ft) late in the
night.
LVORI...............6.
ADI.................23 decreasing to 3.
CEILING (KFT).......2.7 decreasing to 0.1.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........69 75 59 55 60 67 84 87 87 88 89 89
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............69 67 64 61 60 59 59 59 57 57 57 56
Dewpoint........57 57 58 58 59 59 59 58 57 57 57 56
RH..............66 70 81 90 96 100 100 96 100 100 100 100
Aparnt tmp (F)..69 67 64 61 60 59 59 59 57 57 57 56
20 FT wind dir..SE SE E SE E E SE SE E E E E
20 FT wind spd..6 5 3 2 2 2 2 1 1 1 2 2
20 FT wind gust.12 9 7 5 5 5 5 2 2 2 5 5
Mix hgt (kft)...2.1 1.1 0.5 0.5 0.5 0.7 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.E E E E E E SE E E E E E
Transp wind spd.12 9 7 7 7 7 6 6 6 6 6 6
LVORI...........2 3 5 6 8 9 9 8 9 9 9 9
ADI.............23 13 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..21 9 3 3 3 5 3 2 2 2 2 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...2.7 2.2 1.3 0.7 0.3 0.3 0.1 0.1 0.1 0.1 0.1 0.1
.SUNDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
showers in the morning and early afternoon.
Slight chance of thunderstorms in the
afternoon. Rain showers likely late in the
afternoon.
CWR.................0 percent increasing to 42 percent early in the
morning.
Chance of thunder...21 percent.
Max temperature.....Around 74.
Min humidity........66 percent.
Dewpoint............59 increasing to 62 in the afternoon.
Max apparent temp...72.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the afternoon.
Mixing height.......2700 ft AGL.
Transport winds.....Southeast 6 to 13 mph shifting to the south
around 10 mph late in the afternoon.
Smoke dispersal.....Poor (2300 knot-ft) early in the morning
increasing to fair (24300 knot-ft) in the
afternoon.
LVORI...............6 in the morning and early afternoon.
ADI.................7 increasing to 21 in the late morning and
early afternoon.
CEILING (KFT).......0.1 increasing to 0.2 late in the morning, then
increasing to 0.3 late in the morning
decreasing to 0.2 late in the afternoon.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........93 84 91 86 84 90 86 81 90 79 71 82
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........NO NO NO NO NO NO SCH SCH SCH SCH SCH SCH
CWR.............0 0 40 40 40 40 40 40 40 40 40 40
Chc of thdr (%).0 0 10 10 10 10 10 10 20 20 20 20
Temp............57 57 58 62 65 67 68 69 71 72 71 72
Dewpoint........57 57 58 60 61 61 61 62 62 61 62 63
RH..............100 100 100 93 87 81 78 78 73 68 73 73
Aparnt tmp (F)..57 57 58 62 65 67 68 69 71 72 71 72
20 FT wind dir..E SE E E E E SE SE E SE SE SE
20 FT wind spd..2 2 3 3 3 3 5 5 5 3 3 3
20 FT wind gust.5 5 7 7 7 7 9 9 9 7 7 7
Mix hgt (kft)...0.5 0.5 0.8 1.1 1.2 1.6 1.6 1.7 1.8 2.7 2.3 1.8
Transp wind dir.E E E SE E SE SE SE SE SE S S
Transp wind spd.6 7 7 8 12 12 12 12 13 10 10 10
LVORI...........9 9 9 6 4 3 3 3 M M M M
ADI.............4 5 5 10 18 24 24 24 M M M M
Vrate kt-ft/1K..2 3 5 7 12 16 16 17 20 24 20 16
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...0.1 0.1 0.1 0.1 0.2 0.3 0.3 0.3 0.2 0.2 0.2 0.2
$$
Forecaster...TUBBS
Requested by...Kayse Best
Type of request...WILDFIRE
.TAG 2620237.0/GYX
.DELDT 08/22/26
.FormatterVersion 2.0.0
.EMAIL nhnecc@firenet.gov