Normal, Illinois 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

464
FXUS63 KILX 192323
AFDILX

Area Forecast Discussion...Updated Aviation
National Weather Service Lincoln IL
523 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 00z TAFs through 00z Saturday Evening)
Issued at 522 PM CST Fri Dec 19 2025

A cold front will pass through central Illinois dry on Saturday.
Breezy south winds ahead of the front will gust to around 20 kt
overnight into Saturday morning. Aloft, winds will increase to
45-50 kt around 020 resulting in LLWS. Winds will veer to SW then
NW with passage of the front Saturday afternoon. Expect VFR
conditions to prevail through the period with mainly mid and high
level clouds expected with the front.

Deubelbeiss

&&

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

$$