Area Forecast Discussion
Issued by NWS Central Illinois
Issued by NWS Central Illinois
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337 FXUS63 KILX 220713 AFDILX Area Forecast Discussion National Weather Service Lincoln IL 113 AM CST Sat Nov 22 2025 .KEY MESSAGES... - Another round of rain is likely (greater than 80% chance) Monday evening into Tuesday morning. Current forecast guidance suggests amounts will generally range between 0.25"-0.5". - A sharp cold front will push across the area on Wednesday with temperatures slipping into the 20s, with a 50-60% chance of apparent temperatures being below 20 degrees according to the LREF, by Thanksgiving morning. && .DISCUSSION... Issued at 113 AM CST Sat Nov 22 2025 Dry weather settles in for the weekend. High pressure sets up over the region today. Highs today and tomorrow will be in the mid 50s, with lows ranging in the 30s. The next chance for rain comes Monday as a new frontal system pushes through Illinois. It looks as though the area with the greatest thunderstorm chances remain further south (out of our CWA), but showers are looking likely (80-90% chance). Forecast soundings have little to no CAPE of any sort for the Monday to Tuesday timeframe. The LREF is showing a 30-50% chance of 1/4 inch of rainfall from Monday 18z to Tuesday 18z. The NBM is showing a 50-60% chance for the same amount over the same time period. After Tuesday afternoon, drier weather sets up for the remainder of the week. However, the cold front associated with the low bringing precipitation to central IL is expected to move through Tuesday night, which will bring in a burst of winter-like temperatures just in time for the holiday weekend. Highs on Tuesday warm to upper 50s to mid 60s. Behind the front, Highs for the rest of the week only reach the upper 30s to mid 40s. The big drama maker is the bitterly cold lows beginning Thursday morning. Lows for Thursday morning through Saturday morning are in the low to mid 20s. Potentially Thursday morning (Thanksgiving) will be the most frigid -- with a 50-60% chance of apparent temperatures being below 20 degrees according to the LREF. Copple && .AVIATION... (For the 06z TAFs through 06z Saturday Night) Issued at 1113 PM CST Fri Nov 21 2025 Precipitation will dissipate and cigs/vsbys will improve as a low pressure system departs to the east. MVFR vsbys with localized IFR-MVFR cigs for all central IL terminals southeast of KPIA will improve to VFR by 08Z-09Z. Winds NNE 5-10 kts, becoming light and variable by 12Z. SW winds 6-10 kts developing by 18Z. 37 && .ILX WATCHES/WARNINGS/ADVISORIES... None. && $$