Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
409 PM EST Fri Jan 23 2026
.DISCUSSION...
An arctic front will bring gusty winds and dangerously cold wind
chills late tonight into Saturday. A coastal storm will bring
heavy snowfall Sunday afternoon into Sunday night.
Minimum relative humidity values expected to be 25 to 40 percent
Saturday and 45 to 60 percent Sunday morning.
.OUTLOOK...Monday through Thursday...
Occasional light snow will continue Monday then it dries out by
Tuesday as high pressure builds in. An arctic airmass will remain
across the region through Thursday. We will be watching another
coastal storm to the south Thursday.
Southeast Middlesex MA-
Including the cities of Cambridge, Lexington, Newton, Waltham,
and Woburn
409 PM EST Fri Jan 23 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Mclear Pcldy Mcldy
Precip Type None None None Snow
Chance Precip (%) 90
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 1 (-21) 14 (-16) 4 27
RH % (24h trend) 54 (-34) 34 (-12) 56 48
20ft Wnd AM(mph) NW 7 G18 Lgt/Var
20ft Wnd PM(mph) W 9 G21 NW 7 Lgt/Var NE 5
Precip Amount 0.00 0.00 0.00 0.21
Precip Duration 6
Precip Begin 8 AM
Precip End Continuing
Mixing Hgt (ft-AGL) 850 3380 710 1700
Transport Wnd (kts) NW 25 NW 16 NW 14 N 7
Vent Rate (kt-ft) 21250 54080 9940 11900
Max ADI Early 39 Fair 51 Gen Good 12 Poor 16 Gen Poor
Max ADI Late 22 Fair 53 Gen Good 10 Poor 15 Gen Poor
Max LVORI Early 2 2 2 3
Max LVORI Late 2 2 2 3
Min Vsby Early 9 9 9 7
Min Vsby Late 9 9 9 0 Snow
Sunshine Hours N/A N/A N/A N/A
CWR 0 0 0 100
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Snow. Lows around 18. Northeast winds 10 to
15 mph.
.MONDAY...Snow. Highs in the upper 20s. North winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with snow likely. Colder. Lows
around 7. Northwest winds 5 to 10 mph.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Lows around 6. Highs
in the lower 20s. West winds 5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 20s. West winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 3. West winds
around 5 mph.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Lows around 7.
Highs around 20. Northwest winds 5 to 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 20s. Northwest winds
5 to 10 mph.
Forecast And Data Provided By NOAA-NWS Boston / Norton, MA