FXUS63 KILX 221922
AFDILX

Area Forecast Discussion
National Weather Service Lincoln IL
222 PM CDT Sat Aug 22 2026

.KEY MESSAGES...

- Relatively benign weather is on tap for the upcoming week,
  with the primary chance for any rain around mid week.

- Temperatures will not be out of the ordinary for this time of
  year, with high temperatures near 80 degrees Sunday and Monday
  creeping upward a bit through the week.

&&

.DISCUSSION...
Issued at 222 PM CDT Sat Aug 22 2026

Diurnal cumulus development has been increasing across the
northern CWA early this afternoon. While surface CAPE's in that 
area are around 2000 J/kg, mid level lapse rates are fairly low.
Between that and dew points only in the low-mid 60s, any 
precipitation this afternoon should mainly be in the form of 
sprinkles. The dry air will result in a couple of pleasant 
nights, with lows around 60 tonight and mid-upper 50s Sunday 
night. 

The overall upper pattern over the next several days will favor
a northwest flow into the Midwest, which will keep any significant
heat or moisture surges at bay. The most interesting feature of
note will be a shortwave diving southeast around mid week. With
most of the available moisture near the Great Lakes, rain 
chances this far south will be more questionable, with 20-30% 
chances mainly centered on Wednesday night. Temperatures creep
upward and are expected to reach the mid 80s by mid week, with
enough moisture in place to get the heat index to around 90 in a
few places.

&&

.AVIATION /18Z TAFS THROUGH 18Z SUNDAY/...
Issued at 1205 PM CDT Sat Aug 22 2026

VFR conditions prevail the next 24 hours. Northwest winds this
afternoon will range from 10-15 knots before settling down
before sunset. A stray shower or storm is possible late this
afternoon, though odds of occurrence are only around 10-15% and
preclude any mention at the terminals right now.

&&

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

&&

$$

KEY MESSAGES...Geelhart
DISCUSSION...Geelhart
AVIATION...Geelhart