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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: 9:15 am EDT Jul 14, 2026
 
Today

Today: Sunny and hot, with a high near 92. Calm wind.
Hot

Tonight

Tonight: Clear, with a low around 69. Calm wind.
Clear

Wednesday

Wednesday: Sunny and hot, with a high near 93. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon.
Hot

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 72. Light west wind.
Mostly Clear

Thursday

Thursday: Sunny and hot, with a high near 92. Light west southwest wind.
Hot

Thursday
Night
Thursday Night: Mostly clear, with a low around 72. Light west southwest wind.
Mostly Clear

Friday

Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
Friday
Night
Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Partly cloudy, with a low around 72. West southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%.
Showers
Likely then
Chance
T-storms
Saturday

Saturday: A 50 percent chance of showers and thunderstorms after 8am.  Mostly sunny, with a high near 89. Light west southwest wind increasing to 5 to 9 mph in the morning.
Chance
T-storms

Hi 92 °F Lo 69 °F Hi 93 °F Lo 72 °F Hi 92 °F Lo 72 °F Hi 90 °F Lo 72 °F Hi 89 °F

 

Today
 
Sunny and hot, with a high near 92. Calm wind.
Tonight
 
Clear, with a low around 69. Calm wind.
Wednesday
 
Sunny and hot, with a high near 93. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
Mostly clear, with a low around 72. Light west wind.
Thursday
 
Sunny and hot, with a high near 92. Light west southwest wind.
Thursday Night
 
Mostly clear, with a low around 72. Light west southwest wind.
Friday
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
 
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 72. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
 
A 50 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 89. Light west southwest wind increasing to 5 to 9 mph in the morning.
Saturday Night
 
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. West southwest wind 5 to 7 mph.
Sunday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Sunday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Monday
 
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.

 

Forecast from NOAA-NWS for Lafayette IN.

Weather Forecast Discussion
526
FXUS63 KIND 141333
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
933 AM EDT Tue Jul 14 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 933 AM EDT Tue Jul 14 2026

The primary change to the morning update is concerning the ongoing
upper level smoke layer over northern IN. This layer is expected to
slowly sink to the S/SE throughout the day of which will increase
cloud cover and likely suppress diurnal warming slightly over
northern portions of the area. Current expected highs for Kokomo and
Muncie are now between 89-90, a few degrees cooler than the
original forecast.

&&

.DISCUSSION (Today through Monday)...
Issued at 305 AM EDT Tue Jul 14 2026

Upper ridging and surface high pressure will continue to sit 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. Luckily the humidity isn`t forecasted to be
quite as bad as what central Indiana saw for a stretch last month,
and heat indices should stay in the upper 90s up to potentially
around 105. However, can`t completely rule out slightly higher
dewpoints should evapotranspiration and diurnal mixing overperform
which could lead to portions of central Indiana approaching heat
advisory criteria.

The high pressure will start to break down by the end of the week,
although exactly when is still somewhat uncertain as model solutions
lack agreement. As the high moves out, the heat will wane some and
moisture rebounds leading to chances for showers and thunderstorms.
At this time, the highest PoPs look to be Friday and Saturday,
especially during the afternoon hours, with additional chances
potentially lingering into Sunday and Monday.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 652 AM EDT Tue Jul 14 2026

Impacts:

- None

Discussion:

VFR conditions are expected through the period.

Thin cirrus will pass through at times with possibility of afternoon
cu, otherwise very few clouds expected. Winds will be pretty light
and variable at times, especially at LAF where high pressure is
centered over. Elsewhere winds will generally start out from the NE
and drift to out of the E by this afternoon and become light and
variable tonight.

Cannot rule out some fog lingering at KLAF just past 12Z and again
09-12Z tomorrow morning at LAF and HUF but for now confidence is not
high enough to include.


&&

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

$$

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






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