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Lafayette, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Lafayette IN
National Weather Service Forecast for: Lafayette IN
Issued by: National Weather Service Indianapolis, IN
Updated: 10:15 am EDT Jun 12, 2026
 
Today

Today: Sunny, with a high near 80. West northwest wind 7 to 10 mph.
Sunny

Tonight

Tonight: Clear, with a low around 60. West wind around 5 mph becoming calm  in the evening.
Clear

Saturday

Saturday: Sunny, with a high near 83. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunny

Saturday
Night
Saturday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2am.  Low around 65. South southwest wind 6 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Scattered
T-storms then
Showers
Sunday

Sunday: Showers and thunderstorms before 11am, then scattered showers between 11am and 2pm.  High near 73. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers then
Scattered
Showers
Sunday
Night
Sunday Night: Partly cloudy, with a low around 54. Northwest wind 5 to 8 mph becoming calm  in the evening.
Partly Cloudy

Monday

Monday: Mostly sunny, with a high near 74. Calm wind becoming west 5 to 7 mph in the afternoon.
Mostly Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 55. Light west southwest wind.
Partly Cloudy

Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 76. Light southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Sunny then
Chance
Showers
Hi 80 °F Lo 60 °F Hi 83 °F Lo 65 °F Hi 73 °F Lo 54 °F Hi 74 °F Lo 55 °F Hi 76 °F

 

Today
 
Sunny, with a high near 80. West northwest wind 7 to 10 mph.
Tonight
 
Clear, with a low around 60. West wind around 5 mph becoming calm in the evening.
Saturday
 
Sunny, with a high near 83. Light south wind becoming south southwest 5 to 10 mph in the morning.
Saturday Night
 
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 65. South southwest wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
Showers and thunderstorms before 11am, then scattered showers between 11am and 2pm. High near 73. Northwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
Partly cloudy, with a low around 54. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
 
Mostly sunny, with a high near 74. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
 
Partly cloudy, with a low around 55. Light west southwest wind.
Tuesday
 
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 76. Light southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
 
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 58. South southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Wednesday
 
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Wednesday Night
 
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Breezy. Chance of precipitation is 70%.
Thursday
 
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Lafayette IN.

Weather Forecast Discussion
856
FXUS63 KIND 121411
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
1011 AM EDT Fri Jun 12 2026

.KEY MESSAGES...

- Cooler and less humid today, with highs in the lower 80s.

- Showers and thunderstorms likely late Saturday, with severe
  weather possible over southwestern central Indiana.

- Much cooler temperatures for the first half of next week.

&&

.FORECAST UPDATE...
Issued at 1010 AM EDT Fri Jun 12 2026

Forecast evolving as expected this morning as small area of surface
high pressure builds east from central CONUS into Midwest/OH through
the day...providing downward trend in humidity amid west-northwest
breezes under clearing skies.  A few gusts up to 15-20 mph today,
mainly north/east of Indianapolis. A pleasant early summer day
with dewpoints falling into the 55-60 degree range and peak
temperatures in the low 80s across central Indiana.

&&

.DISCUSSION (Today through Thursday)...
Issued at 314 AM EDT Fri Jun 12 2026

Thunderstorms persist across the southern half of our CWA as what
remains of an earlier severe MCS pushes southward. This activity
should come to an end within the next few hours. Severe weather is
no longer expected.

Low amplitude upper-level troughing moves into the Great Lakes
region today. Northwesterly flow at the surface within a post-
frontal environment should lead to a noticeable air mass change.
Combined with surface high pressure arriving, expect clearing skies,
cooler temperatures, and lower humidity today.

Surface high pressure exits eastward on Saturday with southerly low-
level flow returning. Simultaneously, a vort max racing eastward
within a zonal jet stream arrives late Saturday. This feature likely
triggers shower and thunderstorms upstream, mainly over Illinois.

A limiting factor for eastward progression is the aforementioned
surface high pressure. The surface high exits early Saturday, and
there simply may not be enough time to advect moisture/instability
northward into Indiana. Guidance currently depicts sufficient
moisture return over Illinois extending to the IN/IL state line from
Terre Haute southward. Should upstream convection develop, it could
consolidate into a southeast-propagating line that follows the
moisture/instability gradient. This favors the western and
southwestern portions of our CWA.

In terms of severe weather potential, instability is the limiting
factor over Indiana. Model soundings show relatively long hodographs
with mean shear vectors pointing southeastward. Assuming greater
instability is realized, initial development may be capable of
producing large hail. As storms consolidate along developing cold
pools, they should propagate southeastward in line with the shear
vector and along the instability gradient. Damaging wind gusts would
become the primary hazard after this occurs. The best chance of any
of this happening is across Illinois, where available instability is
less in doubt. Across Indiana, again, our southwestern counties have
the best chance of severe weather late Saturday into Saturday night.

Further north, showers and a few thunderstorms still likely even
with the lower severe potential. Chance to likely PoPs will be
included for most of central Indiana.

Broad upper-level troughing persists through the weekend and into
next week. Weak surface high pressure returns with quiet weather and
cooler-than-normal temperatures through mid next week. Another wave
embedded within the broader trough may swing through mid week with
another chance of shower/storms, but it`s too far out to pin point
exact timing.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 646 AM EDT Fri Jun 12 2026

Impacts:

- Lingering MVFR ceilings possible early this morning.

Discussion:

Lingering low cloud cover remains after last night`s thunderstorms.
Ceilings between 1000 to 2000 feet have been observed, with a brief
period IFR conditions at BMG. These low ceilings may persist for a
few hours early this morning, especially near BMG. VFR conditions
return later this morning.

Northwesterly winds increase slightly today to between 10-15 knots.
Winds should diminish substantially this evening as surface high
pressure builds in. Calm to light and variable conditions are
expected tonight. Winds become southeasterly on Saturday.

&&

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

$$

UPDATE...AGM
AVIATION...Eckhoff
DISCUSSION...Eckhoff
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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