Marion, Indiana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

849
FXUS63 KIWX 051811
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
211 PM EDT Sun Apr 5 2026

.KEY MESSAGES...

- Notably colder to begin the week. Tuesday morning will see
  morning lows in the 20s with highs only in the 40s.

- There is a 20-30% chance of light rain showers late tonight
  through the Monday morning commute.

- Becoming warm and spring-like Wednesday through the end of the
  week.

&&

.DISCUSSION...
Issued at 211 PM EDT Sun Apr 5 2026

Clouds are gradually clearing from west to east as yesterday`s cold
front tracks east. Increasing clouds tonight as a shortwave
drops in from Minnesota. While dew points are only in the
upper-20s, temperatures falling tonight into the 30s will help
narrow the gap, while Pacific moisture advection and ample
forcing aides in a quick moistening of the profile. A cold
column could bring a couple of snow flakes. Otherwise, a quick
dose of rain late tonight through the morning commute from west
to east is expected.

For the remainder of Monday, the main vorticity maximum lies across
central Michigan, likely keeping any lingering precipitation
north of our forecast area. Cold high pressure sets up over the
Great Lakes Monday night when lows will tumble well into the
20s; our coldest night of the week. The Michigan State Extension
office indicates a few fruit varieties could be susceptible to
these lows in the mid- 20s. Back to 1990, our median last
28 degree hard freeze is April 11- 20. So, through that lens,
this cold is still within the bounds of climatology.

High pressure is overhead Tuesday resulting in the coldest high
temperatures of the week; low-to-mid 40s. This shifts east by
Wednesday in response to strong low pressure developing over the
Canadian Rockies. Warm air advection quickly ramps up and we`ll be
in the 60s and 70s midweek.

We`ll keep a close eye on what could be a wet pattern late week. The
aformentioned low pressure sends a cold front through the Midwest
that stalls against a strong Southeast US ridge. The combination of
Gulf moisture advection and the stalled front could spawn additional
heavy rain. The magnitude of the high pressure will be critical in
potentially steering this rain farther north out of the forecast
area.

&&

.AVIATION /18Z TAFS THROUGH 18Z MONDAY/...
Issued at 1249 PM EDT Sun Apr 5 2026

Stratus behind yesterday`s cold front is exiting northwest
Indiana. A brief period of mainly clear skies occurs for the
remainder of the daytime hours before clouds increase once more.
An upper-level wave is noted on water vapor across Minnesota
racing southeast. Time height cross sections show a quick
moistening of the column with strong ascent noted resulting in a
period of rain showers prior to 12z. In its wake, lake induced
cloudiness lingers but should improve to VFR ceilings.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...None.
OH...None.
MI...None.
MARINE...Small Craft Advisory until 5 PM EDT this afternoon for LMZ043-
     046.

&&

$$

DISCUSSION...Brown
AVIATION...Brown