


Area Forecast Discussion
Issued by NWS Central Illinois
Issued by NWS Central Illinois
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568 FXUS63 KILX 291052 AFDILX Area Forecast Discussion...Updated Aviation National Weather Service Lincoln IL 552 AM CDT Fri Aug 29 2025 .KEY MESSAGES... - This holiday weekend will be lovely, albeit cooler than normal, for one last gasp at summertime adventures. Highs in the upper 70s to low 80s this afternoon and overnight temperatures in the mid to upper 50s are forecast. - A cold front next week could usher in cooler temperatures briefly. There is a 30% chance that highs get above 70 degrees Thursday. - There is ~30% chance of showers Wednesday into Thursday next week associated with the cold frontal passage. Severe weather is not expected at this time. && .DISCUSSION... Issued at 200 AM CDT Fri Aug 29 2025 This holiday weekend will be lovely, albeit cooler than normal, for one last gasp at summertime adventures. Dry conditions linger into early next week. Surface high pressure hangs over the region until a cold front pushes through Wednesday, which will break this pattern of quiet weather, but will potentially usher in even cooler air. Highs in the upper 70s to low 80s and lows in the mid to upper 50s are expected to continue through midweek next week. Behind the cold front on Wednesday, there is a signal for highs to only get up into the upper 60s and lows in the 40s, starting Thursday. The NBM is showing a max of a 30% chance that highs get above 70 degrees Thursday. The LREF is thinking the same with a 20-40% chance of highs getting above 70 degrees. Looking at the long range models, temperatures appear to rebound by the following weekend. Another aspect of this cold front next week is the probability of showers and thunderstorms. It is still too far out to say for certain where they will develop and if they will be severe. As of this forecast, none of the machine learning models are showing ANY hint that there will be severe weather with the passage Wednesday. The Euro and GFS show some hint at showers across the CWA Wednesday. The current forecast shows ~30% chance of showers Wednesday into Thursday. Copple && .AVIATION... (For the 12z TAFs through 12z Saturday Morning) Issued at 552 AM CDT Fri Aug 29 2025 VFR conditions all day today. DEC will have a brief out of lowered vis due to some very localized fog this morning, but should clear out pretty quickly, give it another hour or 2. Winds will be generally light out of the east-northeast. Copple && .ILX WATCHES/WARNINGS/ADVISORIES... None. && $$