Fire Weather Forecast - Mercer County, WV

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Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
359 AM EDT Thu Aug 20 2026

.DISCUSSION...
Widely scattered showers and thunderstorms will develop across 
the lower Mid-Atlantic this afternoon and evening, resulting in
localized rounds of wetting rainfall. Increased clouds will 
maintain slightly higher minimum relative humidity compared to 
the previous couple days, with minimum RH holding at 40 percent 
or above areawide. Surface winds will gust in the 10 to 15 mph 
range this afternoon from the west. 

A potential remains for heavy rain and localized flash flooding 
to occur across the Piedmont on Friday, more so east of a line 
extending from Yadkinville, NC to the City of Lynchburg. 
Scattered rounds of wetting rainfall will continue on Saturday 
before drier air returns on Sunday.

WVZ042-202015-
Mercer-
Including the cities of Bluefield and Flat Top
359 AM EDT Thu Aug 20 2026

                      Today        Tonight      Fri          

Cloud Cover           Pcldy        Pcldy        Pcldy        
Precip Type           Tstms        Tstms        Tstms        
Chance Precip (%)     30           20           70           
Chance of Thunder (%) 20           20           50           
Max/Min Temp          81           63           79           
Min/Max RH %          66           99           73           
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      Lgt/Var      
Wind 20ft/late(mph)   W  5         Lgt/Var      Lgt/Var      
Precip Amount         0.01         0.01         0.11         
Precip Duration       0            1            3            
Precip Begin          2 PM         Continuing   7 AM         
Precip End            Continuing   6 AM         Continuing   
Mixing Hgt(ft-agl)    4590                      4260         
Transport Wnd (mph)   W 15                      S 12         
Vent Rate (mph-ft)    68850                     51120        
Dispersion                         Very Poor                 
Max ADI Early         55 Gen Good  61 Good      30 Fair      
Max ADI Late          80 Good      1 Very Poor  54 Gen Good  
Max LVORI Early       8            8            9            
Max LVORI Late        3            9            3            

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southeast winds around
5 mph. 
.SATURDAY...Mostly sunny with a slight chance of showers. Highs
in the upper 70s. Minimum RH 63 percent. West winds around 5 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 60s. West winds around 5 mph. 
.SUNDAY...Mostly sunny with a slight chance of showers. Highs in
the mid 70s. Minimum RH 64 percent. West winds around 5 mph. 
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 5 mph. 
.MONDAY...Sunny. Highs in the mid 70s. Minimum RH 51 percent.
West winds around 5 mph. 
.MONDAY NIGHT...Mostly clear. Lows in the mid 50s. North winds
around 5 mph. 
.TUESDAY...Mostly sunny. Highs around 80. Minimum RH 52 percent.
Southwest winds around 5 mph. 
.TUESDAY NIGHT...Mostly clear. Lows around 60. Southwest winds
around 5 mph. 
.WEDNESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 57 percent.
Southwest winds around 5 mph.

.OUTLOOK 8 TO 14 DAYS...
Temperatures above normal.  Precipitation above normal.
Radar