Lafayette, Indiana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

434
FXUS63 KIND 132358
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
Issued by National Weather Service Springfield MO
758 PM EDT Mon Apr 13 2026

.KEY MESSAGES...

- Active pattern this week with near daily chances for showers and
  storms.

- Severe weather is a possibility through Tuesday focused
  mainly across the northwest half of central Indiana. Additional
  threats for strong to severe storms Wednesday and Saturday.

- Warm temperatures expected through Saturday with multiple days
  in the lower to mid 80s. Record temperatures are possible.

&&

.DISCUSSION (Today through Sunday)...
Issued at 258 PM EDT Mon Apr 13 2026

Rest of This Afternoon into This Evening...

An upper wave, moving in the southwest flow aloft, is generating
showers and thunderstorms across Illinois this afternoon. Most if
not all of these will remain west of central Indiana. However,
still cant rule out a few showers or storms popping up in the
unstable atmosphere. Storms across the far northern forecast area
could be strong to severe.

Overnight tonight through Tuesday night...

Thunderstorms generated near the surface front to the north of
the area will move southeast overnight into Tuesday morning. Some
of these may survive into central Indiana, especially the
northeast half of the area.

Additional scattered convection may develop Tuesday afternoon,
especially north closer to the front. Tuesday night, similar to
tonight, convection that develops well north of the could move
southeast into the area.

Some of the convection from Tuesday afternoon into Tuesday night
could be severe, mainly across the northern half of the forecast
area. Damaging winds and large hail will be the primary threats.

Lows tonight in the middle to upper 60s will be near record high
minimum temperatures. Highs on Tuesday will depend on any rain as
well as sky cover. Drier conditions and lower sky cover could lead
to near record highs in the middle 80s, but more rain/sky cover
could limit highs to near 80.

Wednesday through Saturday...

The front will be closer to but still north of the area on
Wednesday. With southwest flow continuing aloft, any upper impulse
moving through the flow will have the potential to generate
scattered convection in an unstable atmosphere. Convection
generated by the front to the north could also impact the northern
forecast area. Isolated strong to severe convection is possible
given expected parameters.

Temperatures on Wednesday will depend on sky cover and rain
coverage, but for now will go with upper 70s north to middle 80s
south.

Wednesday night into Thursday, an upper trough will move into the
area, providing better forcing. The surface front could move into
the area, but there is a decent amount of uncertainty on this.
(The NAMs solution of moving the front completely through looks
overdone). Will have likely or higher category PoPs all areas at
some point Wednesday night into Thursday.

Brief upper ridging looks to move in on Friday, providing a dry
and warm day.

A larger upper trough will move in on Saturday and bring a strong
cold front through the area. This will bring another round of
showers and thunderstorms. Strong storms are possible, depending
on the timing of the front.

Sunday and Monday...

High pressure will build in and provide quiet weather. Highs will
be below normal, with the coldest readings Saturday in the 50s.
Lows in the middle to upper 30s will occur Saturday night, so will
have to watch for the potential for frost if temperatures trend
cooler.

&&

.AVIATION (00Z TAF Issuance)...
Issued at 755 PM EDT Mon Apr 13 2026

Impacts:

- Low-VFR ceilings this evening.
- MVFR CIGs are possible at times after 05Z, at mainly KIND/KLAF
- SSW winds gusting to 20-25KT through most of the TAF period
- Scattered convection may impact KLAF this evening... chances of
  convection at all terminals after 12Z Tuesday at mainly
  KIND/KLAF.

Discussion:

Scattered convection has developed across central Illinois this
evening and will track to the northeast the rest of this evening.
This activity could clip the far northern portions of the area
including the KLAF site, but the better chances look to remain
just north of the area. There could be some occasional MVFR
ceilings overnight across portions of central Indiana.

Additional storms have developed across Minnesota into Wisconsin
this evening. This activity will develop into a cluster and move
southeast tonight into Tuesday morning. It will be weakening as it
moves into the area but some convection from this activity will be
possible at KIND/KLAF after 12Z Tuesday morning.

South to southwest winds will continue through the TAF period
and will be gusty at times. The gusts will increase some in the
afternoon hours Tuesday generally 10 to 15kt with gusts of 20 to
25kt.

&&

.CLIMATE...
Issued at 300 AM EDT Mon Apr 13 2026

Within the setup described in the discussion above, near record
temperatures are possible at times this week, mainly Tuesday,
and Friday. Whether readings get close depends on sky cover and
any rain staying away, which keeps confidence lower at this time.

Current deterministic model runs are cooler than the records, but
the potential exists to get within a few degrees if everything lines
up. On Tuesday April 14, Indy`s record high is 85, set in 1883.
On Friday April 17, Indy`s record high is 87, set in 1896.

Record high minimum temperatures are also in play at times given the
warm and relatively humid air mass. The first opportunity for
this comes Monday, when the record high minimum at Indy is 63, set
in 2014 and tied in 2018. At the moment, the forecast is for
tying that number.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

DISCUSSION...50
AVIATION...SGF
CLIMATE...Ryan