St. Joseph, Missouri 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

264
FXUS63 KEAX 120500
AFDEAX

Area Forecast Discussion
National Weather Service Kansas City/Pleasant Hill MO
1100 PM CST Sun Jan 11 2026

.KEY MESSAGES...

- Temperatures warm starting Monday reaching into the 50s and
  could eclipse the 60s Tuesday.

- Temperatures cool back toward seasonal normals mid to late
  week with a chance for precipitation early Wednesday morning.

&&

.DISCUSSION...
Issued at 207 PM CST Sun Jan 11 2026

A very seasonable day is prevailing today as high pressure resides
over the area. This has provided weak mixing holding highs in the
mid 30s to lower 40s. The surface ridge will shift south and east of
the area tonight and surface winds will become southwesterly in its
wake advecting warmer air into the area. This, coupled with subtle
height rises will push highs well above normal into the upper 40s to
mid 50s. Temperatures will continue to soar well above normal
Wednesday as downslope westerly flow pushes highs in the mid 50s to
lower 60s. Tuesday into Tuesday night a upper level trough will dig
from the Upper Midwest into the Great Lakes forcing a cold front
through the forecast area. Conditions will be dry across the area
but forcing may be strong enough to allow for a few showers (less
than 20% chance)to develop Tuesday night. Strong CAA behind the cold
front Tuesday night into Wednesday will return highs to near normal
Wednesday in the mid 30s to mid 40s. Surface high pressure will then
move into the area Wednesday night into Thursday. Weak mixing
Thursday will again keep highs near normal in the lower 30s to lower
40s. Thursday night into Friday a mid-level trough will move from
the Upper Midwest into the western Great lakes forcing another cold
front through the area bringing the chance (15%-25%) for show
showers Thursday night into Friday for areas along and north of the
Missouri River. Highs Friday will again be near normal in the mid
30s to mid 40s. A reinforcing cold front is expected Friday night
into Saturday as a upper level trough shifts through the area. The
frontal passage looks to remain dry however, it looks to bring the
coldest day of 2026 thus far with highs in the mid 20s to mid 30s.

&&

.AVIATION /06Z TAFS THROUGH 06Z TUESDAY/...
Issued at 1059 PM CST Sun Jan 11 2026

VFR conditions with light southeast winds through the period.
Considered adding a mention of fog at KSTJ terminal, but with
dry air in place, left out the mention.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
MO...None.
KS...None.

&&

$$

DISCUSSION...73
AVIATION...BT