Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
408 PM EDT Fri Sep 12 2025
.DISCUSSION...
Dry weather continues into Saturday. Minimum relative humidity
values expected to be between 40 and 60 percent Friday and
50-60 percent Saturday.
.OUTLOOK..Sunday through Tuesday...
A weak low pressure may bring some rain sometime Sunday into
Sunday night, followed by high pressure into the middle of next
week. Temperatures will be seasonable.
Southeast Middlesex MA-
Including the cities of Cambridge, Lexington, Newton, Waltham,
and Woburn
408 PM EDT Fri Sep 12 2025
Tonight Sat Sat Night Sun
Cloud Cover Mclear Mclear Pcldy Pcldy
Precip Type None None None Tstms
Chance Precip (%) 10 10 20
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 49 (-7) 75 (+3) 55 79
RH % (24h trend) 100 (+14) 53 (+13) 100 54
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var S 5 S 5 Lgt/Var
Precip Amount 0.00 0.00 0.00 0.02
Precip Duration 1
Precip Begin 12 PM
Precip End Continuing
Mixing Hgt (ft-AGL) 290 5470 340 5370
Transport Wnd (kts) SW 5 SW 8 SW 9 NW 10
Vent Rate (kt-ft) 1450 43760 3060 53700
Max ADI Early 18 Gen Poor 36 Fair 23 Fair 45 Gen Good
Max ADI Late 4 Very Poor 55 Gen Good 8 Poor 68 Good
Max LVORI Early 7 2 6 2
Max LVORI Late 7 2 6 2
Min Vsby Early 6 Fog 6 Fog 9 9
Min Vsby Late 6 Fog 9 9 9
Sunshine Hours N/A N/A N/A N/A
CWR 0 0 0 10
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest
winds around 5 mph, becoming north after midnight.
.MONDAY...Sunny. Highs in the mid 70s. Northeast winds around
5 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 50s. Southeast
winds around 5 mph in the evening, becoming light and variable.
.TUESDAY...Sunny. Highs in the upper 70s. West winds around
5 mph, becoming southeast around 5 mph in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds
around 5 mph, becoming southeast around 5 mph in the afternoon.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows in
the upper 50s. Highs in the upper 70s. West winds around 5 mph.
.FRIDAY...Sunny. Highs in the mid 70s. Northwest winds around
5 mph, becoming northeast in the afternoon.
Forecast And Data Provided By NOAA-NWS Boston / Norton, MA