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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: 6:45 am EDT Jun 18, 2026
 
Today

Today: Increasing clouds, with a high near 73. West wind 10 to 14 mph, with gusts as high as 22 mph.
Increasing
Clouds

Tonight

Tonight: Mostly cloudy, then gradually becoming clear, with a low around 56. West northwest wind around 5 mph becoming calm  in the evening.
Decreasing
Clouds

Juneteenth

Juneteenth: Sunny, with a high near 76. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 59. West wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 79. West wind 3 to 8 mph.
Mostly Sunny
then Slight
Chance
T-storms
Saturday
Night
Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 60. Light and variable wind.
Slight Chance
T-storms

Sunday

Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 77. Calm wind becoming southeast 5 to 7 mph in the morning.  Chance of precipitation is 70%.
Chance
Showers then
Showers
Likely
Sunday
Night
Sunday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers.  Low around 59. Northeast wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%.
Showers

Monday

Monday: A 30 percent chance of showers, mainly before 8am.  Partly sunny, with a high near 73. North wind 9 to 11 mph, with gusts as high as 20 mph.
Chance
Showers

Hi 73 °F Lo 56 °F Hi 76 °F Lo 59 °F Hi 79 °F Lo 60 °F Hi 77 °F Lo 59 °F Hi 73 °F

Hazardous Weather Outlook
 

Today
 
Increasing clouds, with a high near 73. West wind 10 to 14 mph, with gusts as high as 22 mph.
Tonight
 
Mostly cloudy, then gradually becoming clear, with a low around 56. West northwest wind around 5 mph becoming calm in the evening.
Juneteenth
 
Sunny, with a high near 76. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Friday Night
 
Partly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening.
Saturday
 
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. West wind 3 to 8 mph.
Saturday Night
 
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. Light and variable wind.
Sunday
 
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 70%.
Sunday Night
 
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 59. Northeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Monday
 
A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 73. North wind 9 to 11 mph, with gusts as high as 20 mph.
Monday Night
 
Partly cloudy, with a low around 53. North wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.
Tuesday
 
Sunny, with a high near 76.
Tuesday Night
 
Partly cloudy, with a low around 56.
Wednesday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Lafayette IN.

Weather Forecast Discussion
623
FXUS63 KIND 181021
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
621 AM EDT Thu Jun 18 2026

.KEY MESSAGES...

- Ongoing flooding will continue this morning

- A few showers are possible this afternoon and again Saturday

- Better chances for rain return Sunday into Monday

- Below normal temperatures will continue for much of the period

&&

.DISCUSSION (Today through Wednesday)...
Issued at 301 AM EDT Thu Jun 18 2026

Early This Morning...

Convection will continue across the southern forecast area where
instability remains but will be slowly weakening. Severe storm
threat should end before 08Z as the leading edge of the convection
sinks south of central Indiana, limiting the inflow of storms to the
north. Threat will transition to flooding with repeated rounds of
storms moving through. Current thoughts are that by the end of the
Flood Watch valid time, most areas will have transitioned to ongoing
flood advisories/warnings, so will let it expire.

Today...

By 12Z rain should be south of the forecast area, so will start the
day off dry. However, some additional upper forcing will move
through this afternoon and could generate some sprinkles or a few
showers. Will have some slight chance PoPs across portions of the
southern half or so of the forecast area this afternoon.

Highs will be in the lower to middle 70s north to around 80 south.
There is some uncertainty with these numbers as cloud cover with the
afternoon sprinkles/showers may keep readings down.

Tonight and Friday...

High pressure will build in and bring quiet weather to the area
during this period. Below normal temperatures will continue with
lows in the 50s tonight and highs mainly in the 70s Friday.

Saturday...

A weak system in northwest flow will bring some forcing to the area
on Saturday. However, moisture will be limited. Will have some
slight chance PoPs with this system. Below normal readings in the
middle 70s to around 80 will continue for high temperatures.

Sunday and Monday...

An upper level wave and surface low pressure system will move
through the area during this time. There remains some questions in
timing of these, but for now it appears that the highest PoPs will
be Sunday night. This system may be able to tap into some moisture
and bring near an inch of rain.

Tuesday and beyond...

High pressure will try to keep the area dry mid-week next week, but
some upper energy may try to squeeze out a few showers around
Wednesday. Temperatures will continue to be below normal for much of
the area.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 621 AM EDT Thu Jun 18 2026

Impacts:

- Wind gusts around 20kt this afternoon

Discussion:

VFR conditions are expected through the period.

Mid and high clouds will increase again today. A few light showers
are possible this afternoon, mainly at KIND/KHUF. Used VCSH for
these. Clouds will scatter out this evening.

Winds will gust to around 20kt this afternoon before diminishing by
early evening.

&&

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

$$

AVIATION...50
DISCUSSION...50
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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