Area Forecast Discussion
Issued by NWS Central Illinois
Issued by NWS Central Illinois
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375 FXUS63 KILX 121923 AFDILX Area Forecast Discussion National Weather Service Lincoln IL 123 PM CST Wed Nov 12 2025 .KEY MESSAGES... - A warming trend will continue through Saturday, when highs reach the low to mid 70s, which approaches records for some locations. - Predominantly dry weather through this weekend with the next appreciable chance of rain (50-60%) Monday night. && .DISCUSSION... Issued at 123 PM CST Wed Nov 12 2025 A west-northwesterly flow regime aloft over the central CONUS continues to maintain dry conditions. West-northwest winds will remain breezy this afternoon with gusts near 25 mph. Visible satellite imagery shows clear skies locally, with some cirrus streaming east-southeast over the central and northern Plains. Skies will become partly to mostly cloudy (high/thin cirrus) tonight due to a weak impulse embedded in the upper-level flow, which could impede aurora viewing at times. High- resolution guidance indicates temperatures falling into the low to mid-30s tonight. Winds will decrease tonight through Thursday morning, as a ridge axis crosses the region from the west. High temperatures on Thursday will be a few degrees warmer than today, reaching the lower 60s for most. The forecast remains dry through the weekend as an amplified upper ridge shifts into the region. The ECMWF, ECMWF-AI, and GFS/GEFS ensemble means all support a substantial warming trend, with high temperatures reaching near 70 degrees on Friday and into the low to mid-70s on Saturday. This places Peoria as the location with the greatest chance to approach its record high of 74F on Saturday. Breezy conditions return on Saturday ahead of a frontal passage, with ensembles indicating southwest wind gusts between 20-30 mph. The ECMWF and GFS ensembles suggest the cold frontal passage will be dry on Saturday afternoon/evening. Following the front, a surface high-pressure system will move in, resulting in dry conditions on Sunday and temperatures cooling back toward seasonable values, with highs in the 50s. Model guidance continues to show a slow, uncertain evolution regarding a cut-off low-pressure system over the southwestern CONUS. The latest NBM trends indicate a maximum PoPs of 50-60% for rain on Monday night. However, there is significant spread among deterministic and ensemble solutions leading to poor confidence in timing or location of precip early next week. Higher confidence that temperatures will trend near to slightly below seasonal norms through mid-week. 25 && .AVIATION... (For the 18z TAFs through 18z Thursday Afternoon) Issued at 1101 AM CST Wed Nov 12 2025 VFR with mainly SKC today and high clouds increasing tonight. West winds will be gusty this afternoon, highest at KCMI-KDEC near 25-30 kt. Gusts to diminish with sunset then winds go light/variable late tonight and Thu morning when a high pressure ridge shifts overhead. 25 && .ILX WATCHES/WARNINGS/ADVISORIES... None. && $$