Calhoun, Illinois Weather Forecast Discussion

189
FXUS63 KILX 120708
AFDILX
Area Forecast Discussion
National Weather Service Lincoln IL
208 AM CDT Fri Sep 12 2025
.KEY MESSAGES...
- An extended period of well above normal temperatures continues
  across central and southeast IL through at least the end of next
  week.
- Little to no precipitation is expected during the next 7 days,
  introducing the risk for flash drought conditions through mid
  September for central and southern IL.
&&
.DISCUSSION...
Issued at 208 AM CDT Fri Sep 12 2025
Ridging overhead will continue to rule the weather pattern to end
out this work week. Temperatures are still building for the weekend
with WAA in place. Highs will be in the 90s for the next week,
dropping to only the mid to upper 60s overnight. The hottest day is
currently forecast to be Sunday, with heat indices of 95-100
degrees. There is a 50-75% chance of highs being greater than 95
degrees on Sunday across the forecast area, with the IL River Valley
area have the highest probability. It doesn`t look like these highs
in the upper 80s into the 90s will be exiting anytime soon. The
global models are showing these temperatures lasting well into the
end of the month. The CPC agrees and keeps above normal temperatures
in the 6-10 and 8-14 day outlooks.
The forecast is **basically** dry through the extended. There are
some hints at some slight chances (15-30% chance) for showers and/or
thunderstorms east of a Bloomington to Effingham line Saturday night
with a frontal boundary that will be draped over northeastern IL.
Rainfall amounts won`t be all that impactful. Currently, the NBM is
showing a 20% chance of more than 0.1" out of that showery activity.
The GFS is showing several chances for precipitation over the next
week, but the other global models are much drier, influencing our
dry forecast through the next week.
Copple
&&
.AVIATION...  (For the 06z TAFs through 06z Friday Night)
Issued at 1152 PM CDT Thu Sep 11 2025
Another set of VFR TAFs with mostly clear skies and east to
southeast winds under 10 kt.
25
&&
.ILX WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$

NWS ILX Office Area Forecast Discussion