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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: 2:26 am EDT Apr 10, 2026
 
Overnight

Overnight: Mostly cloudy, with a steady temperature around 62. South southwest wind 11 to 13 mph, with gusts as high as 25 mph.
Mostly Cloudy

Friday

Friday: Showers and possibly a thunderstorm before 11am, then showers likely.  High near 63. Southwest wind 10 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers

Friday
Night
Friday Night: Partly cloudy, with a low around 38. Northeast wind 6 to 9 mph.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 64. East northeast wind around 6 mph.
Mostly Sunny

Saturday
Night
Saturday Night: Mostly cloudy, with a low around 55. East southeast wind 5 to 8 mph.
Mostly Cloudy

Sunday

Sunday: Mostly cloudy, with a high near 79. South southwest wind 10 to 17 mph, with gusts as high as 31 mph.
Mostly Cloudy

Sunday
Night
Sunday Night: Scattered showers, with thunderstorms also possible after 2am.  Mostly cloudy, with a low around 63. South southwest wind around 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 50%.
Scattered
Showers then
Scattered
T-storms
Monday

Monday: A 40 percent chance of rain and thunderstorms.  Mostly cloudy, with a high near 78. Southwest wind 13 to 15 mph, with gusts as high as 28 mph.
Chance Rain
then Chance
T-storms
Monday
Night
Monday Night: A chance of rain and thunderstorms.  Mostly cloudy, with a low around 67. South southwest wind 10 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.
Chance
T-storms then
Chance Rain
Lo 62 °F Hi 63 °F Lo 38 °F Hi 64 °F Lo 55 °F Hi 79 °F Lo 63 °F Hi 78 °F Lo 67 °F

Flood Warning
 

Overnight
 
Mostly cloudy, with a steady temperature around 62. South southwest wind 11 to 13 mph, with gusts as high as 25 mph.
Friday
 
Showers and possibly a thunderstorm before 11am, then showers likely. High near 63. Southwest wind 10 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
Partly cloudy, with a low around 38. Northeast wind 6 to 9 mph.
Saturday
 
Mostly sunny, with a high near 64. East northeast wind around 6 mph.
Saturday Night
 
Mostly cloudy, with a low around 55. East southeast wind 5 to 8 mph.
Sunday
 
Mostly cloudy, with a high near 79. South southwest wind 10 to 17 mph, with gusts as high as 31 mph.
Sunday Night
 
Scattered showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 63. South southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Monday
 
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 78. Southwest wind 13 to 15 mph, with gusts as high as 28 mph.
Monday Night
 
A chance of rain and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
 
A slight chance of rain, then a chance of rain and thunderstorms after 8am. Mostly cloudy, with a high near 81. Southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Tuesday Night
 
Rain and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
 
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 79.
Wednesday Night
 
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 58.
Thursday
 
A 40 percent chance of rain. Partly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Lafayette IN.

Weather Forecast Discussion
076
FXUS63 KIND 100456
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
1256 AM EDT Fri Apr 10 2026

.KEY MESSAGES...

- Numerous rain showers with a few thunderstorms Friday

- Rain returns early next week with the potential for strong to
  severe storms and renewed flooding

&&

.FORECAST UPDATE...
Issued at 1028 PM EDT Thu Apr 9 2026

Only minor changes were made to the forecast this evening. Blended
in some higher-resolution guidance to better capture local
variabilities within the various parameter fields, especially with
winds overnight and with temperatures on Friday. Winds so far this
evening have been a bit lower than previously anticipated due to
efficient boundary layer stabilization.

Refined the timing of PoPs Friday morning with the approach of a
cold front. Upstream convection is quite expansive but an overall
weakening trend is expected as it progresses east-southeastward
tonight. Regardless, at least some lingering showers are expected to
reach NW portions of our area by 10z.

As mentioned above, temperatures were nudged towards higher
resolution guidance in order to capture the sharpness of Friday
evening`s cold front. Readings in the mid to upper 60s quickly fall
into the 40s by midnight. By Saturday morning, readings in the 30s
are possible from I-70 northward.

&&

.DISCUSSION (This evening through Thursday)...
Issued at 216 PM EDT Thu Apr 9 2026

Through Tonight.

The primary focus for the rest of today remains the unseasonably
warm temperatures and slightly elevated fire danger. With central
Indiana situated in the warm sector of a low pressure system over
the Great Lakes, strong WAA is occurring. Deep mixing of the
boundary layer is expected to tap into 25-30 kt winds at the top of
the layer, resulting in surface gusts near 30 mph this afternoon.
These mixing processes, combined with a persistent dry layer sampled
in recent soundings, will likely drop afternoon relative humidity
values to near 30 percent. When combined with the breezy conditions
and temperatures reaching the mid-70s, roughly 15 degrees above the
norms slightly elevated fire danger persists. Cloud cover will
increase late tonight as the cold front nears the Wabash Valley, but
precipitation is expected to hold off until the predawn hours for
the northwestern counties.

Friday Through Saturday.

The cold front is progged to gradually sag southeastward across the
forecast area on Friday. Guidance suggests that the primary upper
level forcing will become increasingly detached from the surface
boundary as the parent low moves further into Canada. Consequently,
while widespread rain showers are expected, the lack of robust deep-
layer shear and marginal instability, generally under 500 J/kg of
CAPE, will limit the convective threat. An isolated thunderstorm
cannot be ruled out, particularly for areas south of the I-70
corridor where slightly better moisture return may overlap with the
frontal passage, but severe weather is not anticipated. Total
rainfall amounts should remain manageable, generally under half an
inch. Frontal passage will occur by Friday evening, ushering in a
slightly cooler but still mild airmass for Saturday with highs
ranging from the mid-60s to low 70s.

Sunday Through Thursday.

The long-term period features a highly amplitude pattern shift that
warrants close monitoring for severe weather potential. Sunday
serves as a transition day as surface high pressure slides east and
intense southwesterly flow resumes. Ensembles, including the GEFS
and EPS, are in strong agreement regarding a rapid surge in 850mb
temperatures, which should propel surface highs into the low 80s by
Sunday afternoon. This ridge-building phase will be short-lived as a
potent western CONUS trough begins its eastward ejection. By Monday
and Tuesday, a broad theta-e ridge will establish itself over the
Midwest, characterized by dewpoints climbing into the 60s. The
deepening surface low will then move toward the Upper Mississippi
Valley, resulting in the strengthening of the low-level jet (LLJ)
and steepening mid-level lapse rates which will create a classic
spring setup for organized convection. While deterministic models
still show timing discrepancies regarding individual shortwaves, the
ensemble mean suggests a significant severe weather window centering
on Tuesday and Wednesday. Given the projected kinematic profiles and
degree of instability, all modes of severe weather may be possible
across central Indiana during this timeframe.

&&

.AVIATION (06Z TAF Issuance)...
Issued at 1256 AM EDT Fri Apr 10 2026

Impacts:

- LLWS through daybreak
- Scattered rain showers throughout the day
- MVFR ceilings at times this afternoon
- Wind gusts peaking at 20 to 25kt today

Discussion:

The expansion of a low level jet into the region early this morning
will maintain low level wind shear across central Indiana through
daybreak before surface mixing increases ahead of an approaching
cold front from the northwest. Showers in advance of the front will
reach KLAF near or just before daybreak then expand southeast
throughout the day. Impacts from showers will be largely minimal but
do expect MVFR stratus to accompany the showers...especially this
afternoon as the front pushes through the region. Clouds will thin
from the north this evening with KLAF likely to become mostly clear.
Further south...scattered to broken clouds will linger at the other
terminals.

S/SW winds this morning will increase after daybreak with gusts
peaking at 20 to 25kts into the afternoon. Winds will veer to
northwest once the front passes this afternoon then northerly
tonight.

&&

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

&&

$$

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






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