Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
121
FNUS71 KBOX 101010
FWSBOX
Spot Forecast for Freetown SF Rx...MA DCR FIRE
National Weather Service Boston/Norton MA
610 AM EDT Sat Oct 10 2026
Forecast is based on ignition time of 0600 EDT on October 10.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
Dry and mostly sunny conditions today with surface high pressure
overhead. Light/variable winds early this morning become North at
5-10 mph by the afternoon. Dry airmass in place today. Min
relative humidity values around 35 percent. Mixing heights
increase through the morning, peaking early to mid afternoon.
Humidity values recover well tonight to 80-100 percent. Increased
cloud cover for Sunday with higher amounts of moisture. Min
relative humidity values 50-60 percent. Winds out of the SE at
5-10 mph. Rain arrives by early evening.
.TODAY...
Sky/weather.........Mostly sunny.
CWR.................0 percent.
Max temperature.....Around 63.
Min humidity........35 percent.
Dewpoint............39 decreasing to 35 in the afternoon.
Min apparent temp...37.
Surface winds (mph).Light winds becoming north 5 to 6 mph in the
late morning and early afternoon, then becoming
light late in the afternoon.
Wind (20 ft)........Light winds becoming north 5 to 6 mph in the
late morning and early afternoon, then becoming
light late in the afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....North 6 to 14 mph.
Smoke dispersal.....Poor (2800 knot-ft) early in the morning
increasing to fair (28500 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................4 to 40.
CEILING (KFT).......25.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........41 39 37 29 25 30 30 27 33 24 34 33
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............41 39 44 50 55 57 59 61 62 62 62 61
Dewpoint........40 39 41 40 39 37 36 35 34 34 35 36
RH..............96 100 89 68 55 47 42 38 35 35 36 39
Heat index (F)..39 37 42 48 55 57 59 61 62 62 62 61
20 FT wind dir..N N N N N N N N NW NW NW NW
20 FT wind spd..3 3 3 5 6 6 5 5 3 2 1 1
20 FT wind gust.10 10 10 10 12 12 10 9 8 7 6 5
Surface wnd dir.N N N N N N N N NW NW NW NW
Surface wnd spd.3 3 3 5 6 6 5 5 3 2 1 1
Surface wnd gst.10 10 10 10 12 12 10 9 8 7 6 5
Mix hgt (kft)...0.4 0.4 0.5 1.6 2.3 2.7 3.2 3.3 3.5 3.5 3.3 2.0
Transp wind dir.N N N N N N N N NW NW NW NW
Transp wind spd.9 8 8 13 14 12 10 9 8 7 7 6
LVORI...........5 4 5 3 1 1 1 1 1 1 2 2
ADI.............4 8 8 26 39 39 40 38 36 31 30 15
Vrate kt-ft/1K..3 3 3 18 27 27 29 27 25 21 20 10
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...25 25 25 25 25 25 25 25 25 25 25 25
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
CWR.................0 percent.
Min temperature.....Around 39.
Max humidity........100 percent.
Dewpoint............38.
Min apparent temp...39.
Surface winds (mph).Light winds.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....West around 3 mph shifting to the south 5 to 6
mph.
Smoke dispersal.....Poor (1500 knot-ft).
LVORI...............6.
ADI.................2 to 3.
CEILING (KFT).......25.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........57 46 43 29 19 21 29 34 22 38 46 46
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............57 52 48 45 44 43 42 40 39 39 39 39
Dewpoint........37 38 38 38 39 39 39 39 39 39 39 39
RH..............47 59 68 76 82 86 89 96 100 100 100 100
Heat index (F)..57 52 48 45 44 43 42 40 39 39 39 39
20 FT wind dir..SE SE SE SE SE SE SE N N N SE SE
20 FT wind spd..1 1 2 1 1 1 1 0 0 0 1 1
20 FT wind gust.5 5 6 5 5 5 5 3 3 3 5 5
Surface wnd dir.SE SE SE SE SE SE SE N N N SE SE
Surface wnd spd.1 1 2 1 1 1 1 0 0 0 1 1
Surface wnd gst.5 5 6 5 5 5 5 3 3 3 5 5
Mix hgt (kft)...0.6 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.W S S S S S S S S S S SE
Transp wind spd.3 5 6 6 6 6 5 5 6 5 5 6
LVORI...........3 3 3 4 5 6 7 7 8 7 8 7
ADI.............2 2 3 3 3 3 2 2 3 2 2 3
Vrate kt-ft/1K..2 2 2 2 2 2 2 2 2 2 2 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...25 25 25 25 25 25 25 25 25 25 25 25
.SUNDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
late in the afternoon.
CWR.................8 percent increasing to 13 percent late in the
afternoon.
Max temperature.....Around 62.
Min humidity........58 percent.
Dewpoint............41 increasing to 52.
Min apparent temp...39.
Surface winds (mph).Light winds becoming southeast 6 to 7 mph in
the late morning and afternoon.
Wind (20 ft)........Southeast winds 5 to 7 mph early in the morning
becoming light, then becoming southeast 6 to 7
mph in the late morning and afternoon.
Mixing height.......2600 ft AGL.
Transport winds.....South 6 to 13 mph.
Smoke dispersal.....Poor (2100 knot-ft) early in the morning
increasing to fair (28400 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................3 to 41.
CEILING (KFT).......25 decreasing to 6.0.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........74 61 80 76 83 76 76 81 87 94 94 91
Weather cov..... SCH
Weather type.... RW
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 10 10
Temp............39 39 43 51 56 60 61 62 61 61 60 61
Dewpoint........39 39 43 48 47 46 46 47 48 50 52 53
RH..............100 100 100 89 72 60 58 58 62 67 75 75
Heat index (F)..39 39 43 51 56 60 61 62 61 61 60 61
20 FT wind dir..SE SE SE SE SE SE S S S SE SE SE
20 FT wind spd..1 2 2 3 6 7 7 7 7 7 6 6
20 FT wind gust.6 6 7 9 12 15 15 15 16 15 14 14
Surface wnd dir.SE SE SE SE SE SE S S S SE SE SE
Surface wnd spd.1 2 2 3 6 7 7 7 7 7 6 6
Surface wnd gst.6 6 7 9 12 15 15 15 16 15 14 14
Mix hgt (kft)...0.4 0.4 0.4 1.1 1.9 2.5 2.6 2.5 2.3 1.9 1.1 1.0
Transp wind dir.SE SE SE SE S S S S S S S SE
Transp wind spd.6 6 7 9 13 13 13 13 13 13 12 9
LVORI...........7 7 6 4 3 1 1 1 1 3 3 4
ADI.............3 6 7 13 31 40 41 39 36 24 16 11
Vrate kt-ft/1K..2 2 2 9 21 28 28 27 25 21 11 8
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...25 25 25 20 20 20 20 20 15 13 10 6.0
$$
Forecaster...Mensch
Requested by...Aaron Whiddon
Type of request...PRESCRIBED
.TAG 2623524.0/BOX
.DELDT 10/10/26
.FormatterVersion 2.0.0
.EMAIL aaron.whiddon@mass.gov