663
FXUS63 KABR 180614 CCA
AFDABR

Area Forecast Discussion...CORRECTED
National Weather Service Aberdeen SD
114 AM CDT Sat Jul 18 2026

.KEY MESSAGES...

- Cooler today, but above normal heat and humidity returns
  Sunday and Monday. Heat index values will be in the upper 90s
  to 100s over much of the region.

- The next chances for precipitation will be development along a
  cold front moving through the area on Sunday night. A Marginal
  Risk (level 1 out of 5) has been issued for Sunday across areas
  of north central and northeast SD into west central MN.

- Temperatures look to return to normal to perhaps just below
  normal by mid-week next week, with highs in the 80s.

&&

.DISCUSSION...
Issued at 1259 AM CDT Sat Jul 18 2026

As of 1 AM CDT, temperatures around the area are in the upper 60s to
low 70s with winds out of the north to northeast, generally less
than 10 mph. There will be some smoke across far northeast SD and
west central SD today resulting in some reductions of visibility.
This will help keep temperatures slightly lower, so reduced highs in
this area accordingly. Highs will be cooler today, in the 80s to low
90s, before warmer temperatures and heat index values return Sunday
and Monday.

Some limited precipitation chances return Sunday as well, with a 20-
45% chance of thunderstorms. The first round will be in the morning
across north central SD and the second round will be across central
and northeast SD generally north of I-90 during the evening and
early overnight hours. The next chance for precip is expected to
be Wednesday and mainly in south central SD. As mentioned, heat
returns Sunday and Monday with highs in the 90s to near 100 and
heat index values in the upper 90s to low 100s. Relative humidity
values this afternoon around and west of the Missouri River will
fall into the 20-30% range, but since winds aren`t abnormally
strong, fire danger remains low to moderate. This could chance
Monday as forecast highs get into the 30-35 mph range across
northern SD.

&&

.AVIATION /06Z TAFS THROUGH 06Z SUNDAY/...
Issued at 1220 AM CDT Sat Jul 18 2026

Terminals KABR,KATY,KPIR,KMBG

Wildfire smoke continues to affect KATY with MVFR vsby tonight.
Until sfc winds shift to the southeast Sat evening, there is not
really anything that will push this smoke out or stop drawing it
in. Otherwise, VFR conditions are expected to persist through
the next 24 hours at other sites.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.

&&

$$

DISCUSSION...13
AVIATION...20