Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 AM EDT Sun Oct 25 2026
.DISCUSSION...
High pressure remains in control today and Monday, promoting
clear skies and light winds.
Minimum relative humidity values today will range from 25 to
40 percent across much of the region, with higher values of 50 to
65 percent along the eastern and southern coasts, Cape Cod, and
the Islands. On Monday, minimum RH values increase slightly,
generally ranging from 40 to 60 percent.
.Outlook...Tuesday through Saturday.
Broad high pressure remains in control, bringing an extended
stretch of dry weather throughout the week. Global ensembles
indicate less than a 10 percent cumulative probability of
measurable precipitation through Saturday. A moisture-starved
cold front will bring additional cloud cover and cooler
conditions Tuesday and Wednesday, followed by milder temperatures
toward the end of the week.
MAZ015-
Southeast Middlesex MA-
Including the city of Cambridge
407 AM EDT Sun Oct 25 2026
Today Tonight Mon
Cloud Cover Clear Clear Mclear
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 64 (+4) 35 (+2) 68
RH % (24h trend) 28 (-9) 85 (-15) 38
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 2790 360 2930
Transport Wnd (kts) SW 6 S 6 W 12
Vent Rate (kt-ft) 16740 2160 35160
Max ADI Early 6 Very Poor 5 Very Poor 19 Gen Poor
Max ADI Late 24 Fair 5 Very Poor 48 Gen Good
Max LVORI Early 2 5 2
Max LVORI Late 2 5 2
Min Vsby Early 10 10 10
Min Vsby Late 10 10 10
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.TUESDAY...Sunny. Highs in the mid 50s. North winds around 5 mph.
.TUESDAY NIGHT...Clear. Patchy frost. Colder. Lows in the lower
30s. North winds around 5 mph.
.WEDNESDAY...Sunny. Widespread frost. Highs in the mid 50s. North
winds around 5 mph, becoming southeast in the afternoon.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the upper
30s. Highs in the mid 60s. Southwest winds 5 to 10 mph.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
upper 40s. Highs in the upper 60s. Northwest winds 5 to 10 mph.
.SATURDAY...Mostly sunny. Highs in the mid 60s. Northwest winds
around 5 mph, becoming south around 5 mph in the afternoon.