408
FXUS63 KILX 180654
AFDILX

Area Forecast Discussion
National Weather Service Lincoln IL
154 AM CDT Tue Aug 18 2026

.KEY MESSAGES...

- Cooler and less active weather is on deck for this week, but
  it won`t be completely dry. There is a 40-60% chance for
  showers and thunderstorms this evening into tomorrow
  afternoon.

- Temperatures for the next week will be in the upper 70s to
  80s for highs and 60s for lows. The CPC 6-10 and 8-14 day
  outlooks have been trending toward normal temperatures with
  their recent forecast.

&&

.DISCUSSION...
Issued at 154 AM CDT Tue Aug 18 2026

Beautiful August weather is in store for the next week. Temperatures
for the next week will be in the upper 70s to 80s for highs and 60s
for lows. The CPC 6-10 and 8-14 day outlooks have been trending
toward normal temperatures with their recent forecast.

A high pressure center has been drifting overhead but it will get
pushed off to the east by incoming frontal boundaries later this
evening. SPC has central IL in a marginal risk for severe weather
today west of a Vandalia-Decatur-Paxton line. The HRRR and the RRFS
are depicting a mostly dry solution, with limited activity if any.
The NAMNest is a bit more bullish with more widespread shower/storm
activity. If any storms can develop this evening, a damaging wind
threat is possible.

Additional chances for rain exist through Friday, then a dry weekend
is on deck. Wednesday and Thursday are not expected to have any
severe weather at this time, with the majority of the rain that may
occur those two days being south of I-74/Danville, providing a well
deserved break from the heavy rain. With the multiple days with POPs
in the forecast, most people will likely remain dry or see minimal
rainfall amounts through Saturday morning.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1157 PM CDT Mon Aug 17 2026

Light winds and clear skies will allow patchy light fog and
sporadic MVFR visibilities early this morning. Mid level clouds
increase on Tuesday as the next weather system passes to our
southwest. 5-10 kt southwest winds will be common for Tuesday
afternoon.

&&

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

&&

$$

KEY MESSAGES...Copple
DISCUSSION...Copple
AVIATION...25