St. Joseph, Missouri 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

413
FXUS63 KEAX 022331
AFDEAX

Area Forecast Discussion
National Weather Service Kansas City/Pleasant Hill MO
531 PM CST Fri Jan 2 2026

...Updated 00z Aviation...

.KEY MESSAGES...

* 30-40% chance light wintry mix likely for NW/N Missouri this
  evening/overnight
  - Freezing drizzle possible (20% chance) at times
  - Best chances over NW Missouri

* Seasonably warm/above normal temperatures return late weekend into
  next week

* Next chance for precipitation will be a 30-50% chance for
  rain Thursday and Thursday night.

&&

.DISCUSSION...
Issued at 143 PM CST Fri Jan 2 2026

Partly to mostly cloudy skies across the region this afternoon
with temperatures generally in the upper 20s to low 30s. Highs
are on track to peak in the low-to-mid 30s except for our far
south counties may approach 40 if skies can clear. Main forecast
concern through the next few days is the potential for a light
wintry mix this evening into the overnight hours. A weak
shortwave moving out of eastern Nebraska will bring enough
forcing for light precipitation. Model soundings show a fairly
saturated layer through the dendritic growth zone indicating a
better chance for flurries or sleet than freezing rain, but
can`t completely rule it out as hi-res model guidance continues
to indicate a low chance (15%). In any case, guidance suggests a
30-40 percent chance of this light wintry mix mainly north of
a line from St Joseph to Moberly with precip chances decreasing
to the east as this band dissipates. Any light freezing drizzle
or sleet could lead to a few slick spots on untreated roads, so
use caution if you have to travel late tonight. Precip may start
as early as 7 PM and should end by 3 AM.

Over the next several days we see upper-level ridging build back
up over the Rockies leading to increasing heights over the
Central Plains. This will lead to a warming trend, with high
temperatures getting up into the mid 50s north to mid 60s south
by Monday. We`ll keep these warmer temperatures in place through
Wednesday with our next chance for rain arriving on Thursday as
a vigorous upper-level wave moves in from the southwest. This
will lead off the transition in the upper-level pattern to a
more active southwesterly flow regime. Additional chances for
rain appear likely going into next weekend.

&&

.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 528 PM CST Fri Jan 2 2026

Two stratus decks are present above the surface high pressure
that is moving into the area. The end of the afternoon brought
some breaks, but expecting conditions to dip back into MVFR for
most of the evening and into the overnight hours. Light wintry
precipitation mix is still possible for far northwestern
Missouri. Confidence is not high enough in its southward track
to place in the STJ and KC metro TAFs at this time. Saturday
afternoon should start to see some improvement to VFR, however,
this cloud cover may be a bit more difficult to mix out as has
been the trend the past couple of days.

&&

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

&&

$$

DISCUSSION...McCoy
AVIATION...Krull