St. Joseph, Missouri 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

665
FXUS63 KEAX 090810
AFDEAX

Area Forecast Discussion
National Weather Service Kansas City/Pleasant Hill MO
210 AM CST Mon Nov 9 2026

.KEY MESSAGES...

- Foggy conditions across parts of the area Monday morning.

- Pattern changes Wednesday will result in cooler temperatures and
isolated light rain chances.

&&

.DISCUSSION...
Issued at 209 AM CST Mon Nov 9 2026

Current synoptic features show a relatively zonal jet stream pattern
to our north, which has been the reason why we will continue to see
our quiet weather regime for Monday and Tuesday. Due to the
temperature conditions we saw tonight, along with light winds, fog
has formed in parts of the state and around the Missouri River. This
will dissipate as the sun rises and temperatures increase. As we
remain in this quiet pattern, dry conditions will prevail, along
with temperatures in the upper 60s and low 70s, which is 10-15
degrees above average.

The pattern changes on Wednesday as the jet stream to our north
forms a troughing feature across the eastern half of the CONUS, and
a ridging feature on the western half. The trough axis further
developing to our east on Wednesday will result in northerly flow at
the 500mb level. This will allow for our current air mass to
interact with colder Canadian air to our north, which will promote
the development of a low-pressure center. The feature will develop
across Iowa, and progress into Illinois by the afternoon hours on
Wednesday. Impacts include gusty winds from the northwest, isolated
light rain for the eastern half of Missouri, and lower temperatures
more November-like for the rest of the workweek. As the trough
progresses to our east, and the ridge moves into our area by next
weekend, southerly flow will allow for a return for unseasonably
warm temperatures by next weekend.

&&

.AVIATION /06Z TAFS THROUGH 06Z TUESDAY/...
Issued at 1122 PM CST Sun Nov 8 2026

VFR conds with clr skies are fcst thru the TAF pd. Otrw...winds
will be lgt out of the south at less than 5kts thru 15Z-16Z
when they will incr out of the south btn 5-10kts. There is a chc
lgt fog at the TAF sites btn 11Z-15Z but models have been
backing off on the potential so have left out of the TAF for this
issuance.

&&

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

&&

$$

DISCUSSION...Bjork
AVIATION...73