533
FXUS63 KARX 011754
AFDARX

Area Forecast Discussion
National Weather Service La Crosse WI
1254 PM CDT Thu Oct 1 2026

.KEY MESSAGES...

- There will be small rain chances on Saturday night and from
  Tuesday night into Wednesday.

- Central and north-central Wisconsin may see patchy to areas of
  frost on Friday, Sunday, and Monday nights.

&&

.DISCUSSION...
Issued at 1215 PM CDT Thu Oct 1 2026

Tonight into Friday night

A 1025 mb surface high, currently over the western Dakotas and
eastern Montana, will gradually build east across the Upper
Mississippi River Valley. Skies will gradually clear tonight and
then this high will provide mostly clear skies and light winds into
Friday night.

Low temperatures tonight and Friday night will range from the mid-
30s to mid-40s. There may be some patchy to areas of frost in
central and north-central Wisconsin. High temperatures on Friday
will be in the lower 60s.

Saturday and Saturday night

A Canadian cold front will approach the area from the Northern
Plains on Saturday and then move southeast through the area on
Saturday night. There should be enough moisture convergence for
a few showers to form along the front north of Interstate 90.

High temperatures will be in the lower and mid-60s. Low
temperatures will range from the lower 40s to lower 50s.

Sunday through Tuesday

High pressure will provide dry weather. High temperatures will be in
the lower and mid-60s on Sunday and Monday, and in the mid- to upper
60s on Tuesday. Low temperatures on Sunday and Monday nights will
range from the mid-30s to mid-40s. There may be some patchy to areas
of frost in central and north-central Wisconsin.

Tuesday night into Wednesday

Another Canadian cold front will move east through the area. There
remains much uncertainty on whether there will be any rain with this
front. Low temperatures will range from the mid-40s to mid-50s. High
temperatures will range from the upper 60s to mid-70s.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1253 PM CDT Thu Oct 1 2026

The arrival of northwesterly winds bringing drier air near the
surface is leading the lingering MVFR clouds to dissipate
northwest to southeast. Considerable moisture is still present
at and above 5 kft so expect overcast but VFR conditions for
several more hours. Skies should become clear by sunrise Friday
at the latest.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.

&&

$$

DISCUSSION...Boyne
AVIATION...Ferguson