Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 PM EDT Mon Oct 27 2025
.DISCUSSION...
A strong area of high pressure remains parked across eastern
Canada into Wednesday, this leads to mainly dry conditions. Only
exception, would be a spot shower for Cape Ann, Cape Cod, and the
islands.
Minimum value of relative humidity on Tuesday are between 40 and
60 percent west of I-95, while easter east are 60 to 75 percent.
As for Wednesday, values are between 60 and 85 percent. With the
highest values across eastern Massachusetts and Rhode Island...
lower values further west in central Connecticut into western
Massachusetts.
Both days will feature breezy northeast gusts 15 to 25 mph.
.OUTLOOK...Thursday through Sunday...
Strong low pressure system follows with a period of heavy
windswept rain to southern New England sometime Thursday into
Thursday night. A few showers may linger into Friday but drier
weather is likely come this weekend.
Southeast Middlesex MA-
Including the cities of Cambridge, Lexington, Newton, Waltham,
and Woburn
407 PM EDT Mon Oct 27 2025
Tonight Tue Tue Night Wed
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type None None Showers Showers
Chance Precip (%) 10 10 30 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 37 (+3) 55 (+2) 42 53
RH % (24h trend) 92 (-8) 57 (+9) 89 76
20ft Wnd AM(mph) N 5 NE 7
20ft Wnd PM(mph) Lgt/Var NE 8 NE 6 NE 7
Precip Amount 0.00 0.00 0.00 0.02
Precip Duration 2
Precip Begin 6 AM
Precip End Continuing
Mixing Hgt (ft-AGL) 340 4430 580 2460
Transport Wnd (kts) N 10 NE 16 NE 13 NE 14
Vent Rate (kt-ft) 3400 70880 7540 34440
Max ADI Early 7 Poor 54 Gen Good 19 Gen Poor 21 Fair
Max ADI Late 5 Very Poor 69 Good 21 Fair 1 Very Poor
Max LVORI Early 6 1 4 6
Max LVORI Late 6 1 4 6
Min Vsby Early 9 9 9 9
Min Vsby Late 9 9 9 9
Sunshine Hours N/A N/A N/A N/A
CWR 0 0 10 10
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY NIGHT...Mostly cloudy with a chance of showers. Lows
in the mid 40s. Northeast winds 5 to 10 mph.
.THURSDAY...Showers. Highs in the upper 50s. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Showers. Lows in the lower 50s. East winds 5 to
10 mph.
.FRIDAY...Showers. Highs in the lower 60s. Southwest winds 5 to
10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 40s. Southwest winds 5 to 10 mph.
.SATURDAY THROUGH SUNDAY...Partly cloudy. Lows 40 to 45. Highs in
the upper 50s. West winds 5 to 10 mph.
.SUNDAY NIGHT AND MONDAY...Mostly cloudy. A chance of showers.
Lows in the upper 30s. Highs in the mid 50s. Southwest winds
around 5 mph.
Forecast And Data Provided By NOAA-NWS Boston / Norton, MA