334
FXUS63 KILX 271054
AFDILX

Area Forecast Discussion
National Weather Service Lincoln IL
554 AM CDT Tue Oct 27 2026

.KEY MESSAGES...

- Above-normal warmth and mostly dry conditions are expected
  through Friday, with afternoon temperatures in the 70s to near
  80 degrees, solidifying one of the warmest Octobers on
  record.

- Scattered, light showers carry a low chance (10-30%) Thursday
  into (20-40%) Friday, primarily near and north of I-72,
  offering no significant relief to ongoing dry conditions.

- A pattern shift is likely heading into the weekend and
  persisting into next week, increasing confidence in cooler,
  windier, and wetter conditions.

&&

.DISCUSSION...
Issued at 251 AM CDT Tue Oct 27 2026

This dry and warm pattern will continue for a few more days before
true attempts to break the ridge down are made. Today, a shortwave
will travel east across the area dampening the ridge a little before
it builds back almost immediately. This shortwave should pass
uneventful with no rain. Any rain activity should remain off to the
north and west.

The next shortwave will cause a weak backdoor cold front to dip down
into central IL on Thursday, then retreat back north as a warm front
Friday, possibly bringing some very light rain north of I-72.
However, it could also pass without any activity due to how dry our
airmass is. As of now, there is a 10-30% chance of showers for
daytime Thursday and a 20-40% chance of showers again Friday.

Another disturbance will follow closely behind Saturday, bringing a
30-50% chance for showers Saturday into Sunday. Amounts are forecast
to be minimal (< 0.5 inch area wide). Whatever light rain manages to
fall will do little to alleviate the ongoing dry stretch.

A much stronger low pressure system is shown to move through early
next week. The Euro model is showing a deeper, stronger closed upper
low (compared to the GFS and Canadian) traversing over the southern
Plains. The Euro has the low center having a much more north track
than the other, with the center moving into Iowa. The GFS has the
upper low center moving across the Ohio Valley. The Euro depiction
will affect central IL more than the GFS forecast. This system will
bring the greatest chances for showers and thunderstorms to the area
within the next week. There is a widespread 40-60% chance across
central and southeastern IL.

Temperatures will continue to be above normal. Highs will be in the
mid to upper 70s, nearing 80 in some places through Friday. Lows
will be in the 50s. Temperatures will trend slightly cooler starting
Saturday into next week. "Cooler" in this sense means temperatures
will be in the low 70s for highs, still above normal. The CPC`s 6-10
day, 8-14 day, and Week 3-4 outlooks are all still showing above
normal temperatures.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 554 AM CDT Tue Oct 27 2026

TEMPO groups were held at KBMI and KCMI for fog that should
quickly subside with the sunrise. Aside from that, VFR
conditions will prevail through the period with winds becoming
southerly during the day before returning to light and variable
overnight.

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

KEY MESSAGES...Copple
DISCUSSION...Copple
AVIATION...Copple