924  
FNUS71 KPHI 171703  
FWSPHI  
 
SPOT FORECAST FOR DELAWARE STATE FAIR...DELAWARE EMERGENCY MANAGEMENT AGENCY  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
103 PM EDT THU JUL 17 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1300 EDT ON JULY 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
..HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
DISCUSSION
 
 
A VERY WARM AND HUMID AIRMASS WILL REMAIN OVER THE REGION  
TODAY. A COLD FRONT WILL PASS THROUGH THE REGION LATE TONIGHT  
INTO FRIDAY, WITH HIGH PRESSURE BUILDING IN BRIEFLY THROUGH  
SATURDAY. ANOTHER COLD FRONT APPROACHES LATE IN THE WEEKEND AND  
WILL EITHER MOVE OFFSHORE OR STALL WITH HIGH PRESSURE RETURNING  
BRIEFLY EARLY NEXT WEEK. HIGH PRESSURE WILL SHIFT OFFSHORE INTO  
THE MIDDLE OF THE WEEK.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (20-30 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....AROUND 94.  
MIN HUMIDITY........56 PERCENT.  
SURFACE WINDS (MPH).SOUTHWEST WINDS 10 TO 15 MPH.  
 
TIME (EDT) 1PM 2PM 3PM 4PM 5PM  
SKY (%).........25 33 19 23 16  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10  
TEMP............91 92 93 93 91  
RH..............60 58 56 58 60  
SURFACE WND DIR.W W W W SW  
SURFACE WND SPD.10 10 12 12 10  
SURFACE WND GST.22 21 22 22 21  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.  
CHANCE OF PCPN......20 PERCENT.  
MIN TEMPERATURE.....AROUND 76.  
MAX HUMIDITY........87 PERCENT.  
SURFACE WINDS (MPH).WEST WINDS 5 TO 10 MPH SHIFTING TO THE  
NORTHWEST AFTER 3 AM.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........12 18 42 49 35 38 36 41 42 37 34 33  
WEATHER COV..... SCH SCH  
WEATHER TYPE.... RW RW  
TSTM COV........ SCH SCH  
CHC OF PCPN (%).10 10 20 20 0 0 0 0 0 0 0 0  
TEMP............91 89 87 84 83 82 81 80 79 79 77 77  
RH..............62 64 68 74 74 77 79 82 85 85 87 85  
SURFACE WND DIR.SW SW SW SW SW W W W W W NW NW  
SURFACE WND SPD.10 9 7 6 6 6 5 5 5 5 5 5  
SURFACE WND GST.20 18 16 14 13 12 12 10 10 10 10 10  
 

 
FORECASTER...HOEFLICH  
REQUESTED BY...MIKE OMALLEY  
TYPE OF REQUEST...OTHER  
.TAG 2518172.0/PHI  
.DELDT 07/17/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MICHAEL.OMALLEY@DELAWARE.GOV  
 
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