Lafayette, Indiana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

676
FXUS63 KIND 151348
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
948 AM EDT Wed Jul 15 2026

.KEY MESSAGES...

- Generally dry weather and a steady warming trend mid to late week

- Peak heat indices around to slightly above 100 degrees each
  afternoon mid-late week

- Chances for showers and storms return Friday through the weekend,
  primarily during the afternoon and evening

&&

.FORECAST UPDATE...
Issued at 946 AM EDT Wed Jul 15 2026

The forecast is in great shape with only minor adjustments
needed. Look for quiet weather through the day under the
influence of upper ridging and surface high pressure. Plentiful
sunshine aided by large scale subsidence will warm temperatures
into the low 90s by the afternoon hours. This combined with
dewpoints in the upper 60s to low 70s will lead to potentially
dangerous heat. A Heat Advisory is in effect from noon to 8PM EDT
today for north/northeast portions of central Indiana where
slightly higher heat indices are expected. Take extra precautions
if you are outdoors this afternoon. Stay hydrated and take
frequent breaks indoors or in shaded areas.

&&

.DISCUSSION (Today through Tuesday)...
Issued at 304 AM EDT Wed Jul 15 2026

High pressure will continue to influence the weather over the region
through at least Thursday, bringing hot and precipitation free
conditions. Highs over the next few days are expected to reach the
low to mid 90s with heat indices near to slightly above 100 degrees.
The stagnant and suppressed air will also lead to greater ozone
and lower air quality for parts of Indiana today.

The high pressure will start to break down by the end of the week,
and models are showing better agreement on an upper wave bringing
good chances for showers and storms Friday. Aloft, NW flow will set
up with a surface low prompting additional precip chances
Saturday. After a brief break in PoPs, models show another system
to move through early to mid next week with a decent chance of
cooler temps moving in behind it.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 701 AM EDT Wed Jul 15 2026

Impacts:

- Variable visibility at most sites this morning and possible again
at LAF tonight

Discussion:

Outside of overnight/early morning fog which could IFR or worse, VFR
conditions are expected.

Fog is ongoing at all sites but IND this morning which should
dissipate shortly after the beginning of the period. With similar
conditions to this past night, fog is likely again at KLAF again
tonight. Visibility will likely vary significantly at times.

Elevated smoke will be across the area, thickest north. Otherwise
some cumulus will pop up again today. Winds will remain less than
7kt and will vary in direction.


&&

.IND WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 8 PM EDT this evening for INZ021-029>031-
036>042-046>049.

&&

$$

UPDATE...Melo
AVIATION...KF
DISCUSSION...KF