142
FXUS63 KGRB 242115 AAA
AFDGRB

Area Forecast Discussion...UPDATED
National Weather Service Green Bay WI
415 PM CDT Sat Oct 24 2026

Forecast discussion for routine afternoon forecast issuance

.KEY MESSAGES...

- Rain chances 20-40% tonight into Sunday over northern Wisconsin
  and 30-60% mainly over central and north-central Wisconsin
  Monday night and Tuesday.

- Last 70s of the year today? A cold front will bring cooler
  temperatures on Sunday, then temperatures return close to
  normal Monday.

- The cool down will be brief as above normal temperatures return
  Tuesday and then continue into next weekend.

&&

.DISCUSSION...
Issued at 1157 AM CDT Sat Oct 24 2026

Skies were partly to mostly sunny early this afternoon with
temperatures in the middle 60s to lower 70s away from Lake
Michigan. Temperatures should top out as warm as the middle 70s
across central Wisconsin. Meanwhile, a cold front across
Minnesota will gradually push eastward into Wisconsin tonight,
reaching north-central and central Wisconsin towards 12z Sunday.
The front will trigger a chance of showers late tonight into
Sunday morning. Looking to Sunday, several models are indicating
an fgen band setting up across northern Wisconsin that could bring
a narrow area of showers. Only have 20-30% chance of rain for the
time being, but certainly could rain chances increased later
tonight once there is better confidence in where the narrow
line of showers develop. The chance of showers will linger into
early Sunday evening. Cooler temperatures will prevail as highs
across the north will be in the lower to middle 50s while it will
still be close to 70 degrees across east-central WI. Temperatures
are going to be considerably cooler on Monday with highs in the
middle 40s to middle 50s, which is more typical for late October.

The next chance of showers will be Monday night into Tuesday as
a warm front lifts northward. Highs on Tuesday will be in the
50s to lower 60s. Above normal temperatures should then continue
into next weekend. The chances of rain return  late Tuesday night
and Wednesday, and then again late Thursday night into next
weekend as two systems move across the region.

&&

.AVIATION...for 18Z TAF Issuance
Issued at 1157 AM CDT Sat Oct 24 2026

VFR conditions should prevail through tonight, then MVFR CIGS
move into northern WI after 12z. Spotty showers are possible late
tonight into early Sunday morning, then potentially another round
of showers across the north during the afternoon. Gusty south
winds this afternoon of 10 to 15 knots with gusts around 20. Low
level wind shear will develop this evening and continue into the
overnight hours, although ending from west to east. A weak
boundary moving across the area will shift the winds to the
northwest or north later tonight into Sunday.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION.....Eckberg
AVIATION.......Eckberg

NWS GRB Office Area Forecast Discussion