901  
FNUS71 KLWX 292057  
FWSLWX  
 
SPOT FORECAST FOR WATER EMERGENCY...MONTGOMERY COUNTY OEM  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
457 PM EDT TUE SEP 29 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1700 EDT ON SEPTEMBER 29.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
OTHER THAN A SLIGHT CHANCE FOR A SPRINKLE OR VERY LIGHT RAIN SHOWER THIS  
EVENING, DRY CONDITIONS ARE EXPECTED THROUGH THE DAY TOMORROW. WINDS  
WILL BE LIGHT OUT OF THE NORTHWEST THIS EVENING, GO CALM TONIGHT, AND  
THEN TURN LIGHT OUT OF THE SOUTHWEST TOMORROW. TEMPERATURES ARE IN THE LOW  
70S CURRENTLY, WILL DROP BACK INTO THE UPPER 50S TONIGHT, AND THEN CLIMB  
BACK INTO THE UPPER 70S TOMORROW. SOME PATCHY FOG COULD BE POSSIBLE LATE  
TONIGHT. ANY FOG WILL QUICKLY BURN OFF AFTER SUNRISE TOMORROW, GIVING WAY  
TO MOSTLY SUNNY SKIES.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF  
SHOWERS.  
CHANCE OF PCPN......20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 72.  
MIN HUMIDITY........68 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS.  
 
TIME (EDT) 5PM  
SKY (%).........73  
WEATHER COV.....SCH  
WEATHER TYPE....RW  
TSTM COV........  
CHC OF PCPN (%).20  
CHC OF THDR (%).0  
TEMP............70  
RH..............71  
SURFACE WND DIR.NW  
SURFACE WND SPD.3  
SURFACE WND GST.7  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING  
PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF  
RAIN SHOWERS EARLY IN THE EVENING. PATCHY FOG  
EARLY IN THE MORNING.  
CHANCE OF PCPN......20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....AROUND 58.  
MAX HUMIDITY........100 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........66 60 40 32 26 25 28 29 33 40 39 47  
WEATHER COV.....SCH SCH PTY  
WEATHER TYPE....RW RW FOG  
TSTM COV........  
CHC OF PCPN (%).20 20 0 0 0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............69 68 64 63 62 61 60 60 59 59 59 59  
RH..............76 78 100 100 100 100 100 100 100 100 100 100  
SURFACE WND DIR.NW NW W N N N N N W W W NW  
SURFACE WND SPD.2 1 1 0 0 0 0 0 1 1 1 1  
SURFACE WND GST.5 3 3 2 1 2 2 2 3 3 3 3  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). PATCHY FOG EARLY  
IN THE MORNING.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 79.  
MIN HUMIDITY........64 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH IN  
THE AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........33 24 24 19 30 39 35 41 57 34 35 61  
WEATHER COV.....PTY PTY PTY  
WEATHER TYPE....FOG FOG FOG  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............59 58 60 63 68 72 74 76 77 77 77 78  
RH..............100 100 100 100 90 81 76 71 67 67 67 64  
SURFACE WND DIR.NW N NW SW SW SW SW SW SW SW SW SW  
SURFACE WND SPD.1 0 1 1 2 3 3 5 6 5 5 5  
SURFACE WND GST.3 2 3 3 5 6 8 9 10 10 10 9  
 

 
FORECASTER...PALLOZZI  
REQUESTED BY...MATTHIAS MIZIORKO  
TYPE OF REQUEST...SAR  
.TAG 2622783.0/LWX  
.DELDT 09/29/26  
.FORMATTERVERSION 2.0.0  
.EMAIL MATTHIAS.MIZIORKO@MONTGOMERYCOUNTYMD.GOV  
 
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