❰ Current Conditions

Fire Weather Discussion

Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
430 AM EDT Thu May 6 2021

.DISCUSSION...  

Dry weather is expected for Thursday and Friday. Minimum RH values 
will hover between 30 and 40 percent for most, with the exception 
being the Cape and Islands, where RH values will reach into the 50 
to near 60 percent range today. A northwesterly wind of 10 to 15 kts 
with gusts to 20 kts develops for Thursday.

Friday will have less wind. Minimum relative humidities will be in 
the 30 to 45 percent range.  

OUTLOOK...Saturday through Monday... 

Rain chances return Friday Saturday, but not everyone will see rain. 
Dry on Sunday before more widespread rain returns overnight and 
Monday.

Southeast Middlesex MA-
Including the cities of Cambridge, Lexington, Newton, Waltham, 
and Woburn
430 AM EDT Thu May 6 2021

                      Today        Tonight      Fri          

Cloud Cover           Mclear       Pcldy        Pcldy        
Precip Type           None         None         None         
Chance Precip (%)     0            0            0            
Temp (24h trend)      61 (+11)     41 (-5)      59           
RH % (24h trend)      33 (-44)     70 (-30)     34           
20ft Wnd AM(mph)      NW  8 G20                 Lgt/Var      
20ft Wnd PM(mph)      NW  9 G19    Lgt/Var      E  8         
Precip Amount         0.00         0.00         0.00         
Precip Duration                                              
Precip Begin                                                 
Precip End                                                   
Mixing Hgt (ft-AGL)   5890         290          6340         
Transport Wnd (kts)   NW 20        NW  3        E 10         
Vent Rate (kt-ft)     117800       870          63400        
ADI early             105 Very Good105 Very Good48 Gen Good  
ADI late              105 Very Good4 Very Poor  64 Good      
Max LVORI early       4            2            3            
Max LVORI late        1            3            1            
CWR                   0            0            0            
LAL                   No Tstms     No Tstms     No Tstms     
Haines Index          3            3            4            

REMARKS...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Northeast
winds around 5 mph. 
.SATURDAY...Mostly cloudy with a chance of showers. Highs in the
upper 50s. Northeast winds around 5 mph. 
.SATURDAY NIGHT...Mostly cloudy. Lows in the mid 40s. West winds
around 5 mph. 
.SUNDAY...Mostly sunny. Highs in the mid 60s. West winds 5 to
10 mph. 
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 40s. West winds 5 to 10 mph. 
.MONDAY...Partly sunny with a chance of showers. Highs around 60.
West winds around 5 mph, becoming northeast in the afternoon. 
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northwest
winds around 5 mph. 
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows in the mid 40s.
Highs in the lower 60s. Northwest winds 5 to 10 mph.