Expires:No;;334963
FXUS63 KILX 170710
AFDILX

Area Forecast Discussion
National Weather Service Lincoln IL
210 AM CDT Mon Aug 17 2026

.KEY MESSAGES...

- Cooler and less active weather is on deck for this week, but
  won't be completely dry. There is a 50-70% chance for showers
  and thunderstorms tomorrow afternoon into Wednesday morning. 

- Temperatures for the next 7 days will be in the upper 70s to
  80s for highs and 60s to low 70s for lows. The CPC 6-10 and 
  8-14 day outlooks show a 30-50% chance of above normal 
  temperatures returning. 

&&

.DISCUSSION...
Issued at 210 AM CDT Mon Aug 17 2026

After this area of heavy rain exits the southeast this morning, a 
much less active pattern will settle in for the week. Behind the 
cold front moving through IL currently, a high pressure center will 
set up over the Upper Mississippi Valley / Great Lakes region for a 
day. Temperatures for the next 7 days will be in the upper 70s to 
80s for highs and 60s to low 70s for lows. This period of cooler 
weather doesn't look like it is in for the long haul. The CPC 6-10 
and 8-14 day outlooks show a 30-50% chance of above normal 
temperatures. 

Showers and thunderstorms re-enter the forecast by late 
tomorrow as a upper disturbance pulses through. SPC has central 
IL in a marginal risk for severe weather for Tuesday west of a 
Pittsfield to Ottawa line, which would be for the late afternoon
convection. There is a 50-70% chance for showers and 
thunderstorms tomorrow afternoon into Wednesday morning. 

Additional chances for rain exist through Thursday before returning 
to a mostly dry forecast for the end of the week. Wednesday and 
Thursday are not expected to have any severe weather at this time. 
It also appears that the majority of the rain that may occur those 
two days should be south of I-74/Danville, providing a well deserved 
break from the heavy rain. 


&&

.AVIATION /06Z TAFS THROUGH 06Z TUESDAY/...
Issued at 1150 PM CDT Sun Aug 16 2026

Winds will continue to veer northwest over the next several
hours as a cold front pushes farther southeast of the
terminals. Speeds will increase to around 10 kt during the
daylight hours with a few gusts near 20 kt, but gusts look 
sporadic enough to not include in TAFs. Patchy MVFR visibilities
are likely in light fog early this morning, and added a TEMPO 
group to account for this. Otherwise VFR conditions expected 
with SCT-BKN mid level clouds.

&&

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

&&

$$

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