295  
FXUS63 KILX 151050  
AFDILX  
 
AREA FORECAST DISCUSSION...UPDATED AVIATION  
NATIONAL WEATHER SERVICE LINCOLN IL  
550 AM CDT MON SEP 15 2025  
   
KEY MESSAGES  
 
- THE NEXT WEATHER SYSTEM HAS TRENDED SLOWER, AND NOW MOSTLY DRY  
CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE DAYTIME HOURS ON  
THURSDAY, WITH HIGHS IN THE 90S.  
 
- OCCASIONAL RAIN CHANCES RETURN LATE WEEK INTO THE WEEKEND  
(20-40% EACH DAY). TOTAL RAINFALL AMOUNTS ARE UNLIKELY TO EXCEED  
1" (LESS THAN 30% CHANCE).  
 
 
 
   
DISCUSSION  
 
ISSUED AT 137 AM CDT MON SEP 15 2025  
 
WITH THE UPPER LEVEL RIDGING STILL SITTING OVERHEAD, THE FORECAST  
HASN'T CHANGED TOO MUCH. THE HIGHS YESTERDAY OVERPERFORMED, GIVING  
US THE HOTTEST DAY OF THE YEAR FOR MANY LOCATIONS. HIGHS CONTINUE TO  
BE IN THE 90S THROUGH AT LEAST THURSDAY, DROPPING TO ONLY THE MID TO  
UPPER 60S OVERNIGHT. WE MAY GET A BREAK IN THE SUMMERTIME WARMTH  
SOON, AS A SLOW MOVING UPPER LOW TRAVELS ACROSS THE REGION THIS  
WEEKEND. HIGHS TO DROP DOWN INTO THE UPPER 70S TO MID 80S FOR THE  
WEEKEND. THE CPC KEEPS ABOVE NORMAL TEMPERATURES IN THE OUTLOOKS  
THROUGH THE NEXT 3-4 WEEKS. NORMAL HIGHS FOR MID TO LATE SEPTEMBER  
ARE AROUND THE MID 70S TO LOW 80S AND LOWS IN THE LOW TO MID 50S.  
 
THE FORECAST WILL BE DRY, WHICH IS BAD NEWS FOR THE WORSENING  
DROUGHT. THE MODELS HAVE SLOWED DOWN THE SYSTEM THAT IS FORECAST FOR  
THE LATTER HALF OF THE WEEK. THURSDAY IS NOW LOOKING TO BE DRY. POPS  
INCREASE BY FRIDAY TO 30-40% CHANCE FOR SHOWERS AND THUNDERSTORMS.  
DAILY CHANCES FOR RAIN EXIST EVERYDAY AFTER FRIDAY.  
NONE OF THESE ROUNDS OF PRECIPITATION WILL BE DROUGHT BUSTING. THE  
NBM IS SHOWING ONLY A 15-30% CHANCE OF AN INCH DURING THE FRIDAY 12Z  
TO MONDAY 12Z, 72 HOUR PERIOD.  
 
COPPLE  
 
 
   
AVIATION  
(FOR THE 12Z TAFS THROUGH 12Z TUESDAY MORNING)  
ISSUED AT 550 AM CDT MON SEP 15 2025  
 
ANOTHER VFR FORECAST WITH MAINLY CLEAR SKIES AND LIGHT EAST WIND.  
 
COPPLE  
 
 
   
ILX WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
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