937 FXUS63 KILX 140632 AFDILXArea Forecast Discussion National Weather Service Lincoln IL 132 AM CDT Sun Sep 14 2025
.KEY MESSAGES...
- Hot and mostly dry conditions are expected through mid-week, with highs in the low to mid 90s. Heat indices approaching 100 degrees west of I-55 today. Drought conditions are expected to persist or worsen.
- Temperatures will trend cooler during the latter half of the week, and some rain chances (30-50%) return to the forecast Thursday-Friday. While any rainfall will be welcome, rainfall amounts are unlikely to exceed 1" (less than 20% chance).
&&
.DISCUSSION... Issued at 132 AM CDT Sun Sep 14 2025
Ridging overhead is still controlling the weather pattern. Highs will be in the 90s for most of the next week, dropping to only the mid to upper 60s overnight. The hottest day is today, with heat indices of 95-100 degrees. We may get a break in the summertime warmth by the end of the week, as upper troughing breaks down the ridging that has been predominately in place. Highs start dropping down into the upper 70s to mid 80s by late week. However, above normal warmth appears to continue, as the CPC keeps it 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 looks to be primarily dry, but there is a 20% chance of precipitation for west central IL this afternoon. Rainfall amounts IF something were to develop would not be impactful. Drought conditions and dry airmass will limit the convective development, like it did yesterday. More rain chances return late in the week. The next best chance for rain comes Thursday into Friday with a 40- 50% chance. None of these rounds of precipitation will be drought busting, since there is only a 15-20% chance of an inch of rain by next Sunday.
Copple
&&
.AVIATION... (For the 06z TAFs through 06z Sunday Night) Issued at 1148 PM CDT Sat Sep 13 2025
Another set of VFR TAFs with scattered high clouds through Sunday. Light/variable winds tonight will become northeast by late morning at 5-10 kt. Can`t rule out some patchy MVFR visibility in fog around sunrise at KPIA-KBMI, but the higher probabilities of this occurring are farther north so kept out of TAFs.
25
&&
.ILX WATCHES/WARNINGS/ADVISORIES... None. &&
$$
NWS ILX Office Area Forecast Discussion