380
FXUS63 KLOT 021826
AFDLOT

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
126 PM CDT Fri Oct 2 2026

.KEY MESSAGES...

- An extended period of drier weather with seasonable
  temperatures through the middle of next week

&&

.DISCUSSION...
Issued at 126 PM CDT Fri Oct 2 2026

The front that brought yesterday`s rainfall continues to move
east of the region. Higher clouds remain over potions of north-
central Indiana, but will gradually move east through the
evening. There is a narrow band of convergence that extends
from southern Lake Michigan down to Gibson City, Illinois
resulting in mid-level cumulus clouds. Clearer skies extend
northwest of the area as today marks the first of several with
drier conditions developing.

Winds remain out of the northeast around 10 mph, and are
expected to diminish after sunset. With clearer skies, light
winds, and cooling temperatures, there is a chance for patchy
shallow fog for areas away from the Chicago Metro. Widespread
dense fog is not expected, but satellite trends will need to be
monitored overnight. Otherwise, the northerly flow will advect
in a cooler air mass knocking temperatures down into the 40s
tomorrow morning; though it would not be surprising if a few
isolated rural spots touched the upper 30s.

Seasonable temperatures look to set-up through the week next
week with high temperatures in the 60s and low 70s and overnight
lows in the 40s and 50s. Ensemble models are showing some
consistency with a couple of fronts passing through the western
Great Lakes: one on Sunday, the other in the middle of the
week. It is possible that an isolated light rain or sprinkle
develops from it, but as most models favor this remaining in
Wisconsin as it passes over, it may only be the northernmost
tier of Illinois counties south of the Wisconsin state line
that has the best (albeit low) chance for some rain drops.
Otherwise, the extended forecast keeps us precipitation free.

DK

&&

.AVIATION /18Z TAFS THROUGH 00Z SUNDAY/...
Issued at 1234 PM CDT Fri Oct 2 2026

There are no key concerns for the 18Z TAF period.

NNE winds at 10 to 20 kt this afternoon will subside to below
10 kt this evening before veering to SE late tonight, possibly
going VRB at times in the process. Saturday will open up with SE
winds getting to near 10 kt by mid morning. Expect VFR
through the period.

Doom

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...Small Craft Advisory until 4 AM CDT Saturday for the IL and IN
     nearshore waters.

&&

$$

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