736
FXUS63 KILX 191931
AFDILX

Area Forecast Discussion
National Weather Service Lincoln IL
131 PM CST Fri Dec 19 2025

.KEY MESSAGES...

- Temperatures fluctuate through the weekend. Well above normal
  temperatures are forecast for next week. There is a 50-70%
  chance of temperatures exceeding 65 degrees on Christmas Day
  south of I-72.

- Mainly dry forecast through the extended but there are a few
  weak disturbances that look to move through that could produce a
  few sprinkles or flakes through the next week.

&&

.DISCUSSION...
Issued at 131 PM CST Fri Dec 19 2025

A wild ride of daytime temperatures is on tap for the weekend.
Overnight temperatures from tonight through Monday morning will be
in the 20s. Today is chilly with highs in the upper 20s to mid 30s.
Winds will shift out of the southwest tonight from a high pressure
to our southeast, warming daytime temperatures into the mid 40s to
low 50s for Saturday. A dry cold front is expected to pass through
tomorrow evening, which will pull more cold air south. Sunday`s high
will only be in the low 30s to low 40s. Overnight Sunday, a high
pressure system will develop off to our east, shifting the winds out
of the southeast. This will begin our great warm up for the
Christmas holiday. By mid week, temperatures during the day will be
in the mid 50s to mid 60s. There is a 50-70% chance of temperatures
exceeding 65 degrees on Christmas Day, from the LREF and NBM, south
of I-72.

Mainly the forecast is dry, but there are a few weak disturbances
that look to move through that could produce a few sprinkles or
flakes here and there through the next week. There looks to be a
cold front that moves through Christmas night into the morning of
the 26th, but is looking dry as of today`s models. That is still a
week out and we (forecasters) tend to get a bit skeptical when
temperatures get into the mid to upper 60s with dewpoints nearing
60 degrees in December. We will continue to monitor trends the
next week. As of this moment, Christmas looks to be a lovely, dry,
warm day.

Copple

&&

.AVIATION...  (For the 18z TAFs through 18z Saturday Afternoon)
Issued at 1120 AM CST Fri Dec 19 2025

VFR conditions are area-wide now, minus CMI, who should be
improving to VFR ceilings soon. Winds will be out of the northwest
around 15-20 knots, gusting occasionally up to 25 knots. Winds
will begin to shift towards more southerly though the day. Wind
gusts will relax this afternoon before picking back up to 20-25
knots overnight. A low level jet is expected to develop to the
west this evening, and spread into central Illinois by 04-06z. A
period of LLWS is forecast for all sites from 04z to 17z.

Copple

&&

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

$$