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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: 2:45 am EST Jan 14, 2026
 
Overnight

Overnight: Cloudy, with a steady temperature around 40. West northwest wind around 8 mph, with gusts as high as 20 mph.
Cloudy


Wednesday

Wednesday: Scattered rain and snow showers before 10am, then scattered snow showers between 10am and 5pm, then scattered flurries after 5pm.  Cloudy, with a temperature falling to around 24 by 5pm. Breezy, with a north northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Rain/Snow
then
Scattered
Snow Showers
and Breezy
Wednesday
Night
Wednesday Night: Scattered flurries between midnight and 1am.  Partly cloudy, with a low around 15. Northwest wind 14 to 17 mph, with gusts as high as 28 mph.
Scattered
Flurries


Thursday

Thursday: Sunny, with a high near 25. Northwest wind 8 to 13 mph, with gusts as high as 21 mph.
Sunny


Thursday
Night
Thursday Night: Snow likely, mainly after 1am.  Mostly cloudy, with a low around 19. South southwest wind 6 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.
Slight Chance
Snow then
Snow Likely

Friday

Friday: A 50 percent chance of snow.  Mostly cloudy, with a high near 37. West southwest wind around 14 mph, with gusts as high as 25 mph.
Chance Snow


Friday
Night
Friday Night: A 30 percent chance of snow, mainly after 1am.  Mostly cloudy, with a low around 16. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Chance Snow


Saturday

Saturday: A 30 percent chance of snow before 1pm.  Mostly cloudy, with a high near 19. West wind around 11 mph, with gusts as high as 22 mph.
Chance Snow


Saturday
Night
Saturday Night: Partly cloudy, with a low around 7. West wind around 7 mph.
Partly Cloudy


Lo 40 °F Hi 37 °F Lo 15 °F Hi 25 °F Lo 19 °F Hi 37 °F Lo 16 °F Hi 19 °F Lo 7 °F

Hazardous Weather Outlook
 

Overnight
 
Cloudy, with a steady temperature around 40. West northwest wind around 8 mph, with gusts as high as 20 mph.
Wednesday
 
Scattered rain and snow showers before 10am, then scattered snow showers between 10am and 5pm, then scattered flurries after 5pm. Cloudy, with a temperature falling to around 24 by 5pm. Breezy, with a north northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
Scattered flurries between midnight and 1am. Partly cloudy, with a low around 15. Northwest wind 14 to 17 mph, with gusts as high as 28 mph.
Thursday
 
Sunny, with a high near 25. Northwest wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday Night
 
Snow likely, mainly after 1am. Mostly cloudy, with a low around 19. South southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday
 
A 50 percent chance of snow. Mostly cloudy, with a high near 37. West southwest wind around 14 mph, with gusts as high as 25 mph.
Friday Night
 
A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 16. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday
 
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 19. West wind around 11 mph, with gusts as high as 22 mph.
Saturday Night
 
Partly cloudy, with a low around 7. West wind around 7 mph.
Sunday
 
Partly sunny, with a high near 19. West wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
 
Mostly cloudy, with a low around 9.
M.L.King Day
 
Mostly cloudy, with a high near 20.
Monday Night
 
Partly cloudy, with a low around 4.
Tuesday
 
Partly sunny, with a high near 20.

 

Forecast from NOAA-NWS for Lafayette IN.

Weather Forecast Discussion
840
FXUS63 KIND 140758
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
258 AM EST Wed Jan 14 2026

.KEY MESSAGES...

- Turning much colder today with scattered snow showers.
  Minor accumulations possible.

- Gusty winds up to 35mph today with wind chills dropping tinto the
  teens and single digits by sunset.

- Light accumulating snow Thursday night into Friday, up to an inch
  or two possible.

- Additional light snow chances through the weekend.

- Well-below normal temperatures later this week into early next
  week with subzero wind chills at times.

&&

.SHORT TERM (Today and tonight)...
Issued at 257 AM EST Wed Jan 14 2026

Temperatures remain elevated as of 06z under thick mid-level cloud
cover and persistent west-southwesterly winds. Temperatures around
50 degrees have been reported for much of the southern half of
central Indiana. However, winds are beginning to become westerly as
a cold front approaches from the north. Weak frontogenesis ahead of
this boundary has lead to light rain from about Bloomington
southward. This should diminish with time as the approaching front
shifts the best large-scale forcing east.

Further north, low stratus is already beginning to enter central
Indiana with Lafayette reporting overcast skies at 3000 feet agl.
This is the first sign of strong cold air advection, and low clouds
will spread southward through the morning hours. Despite how cold
the advancing air mass is, the front itself is not sharp or well-
defined. Observations upstream have shown a gradual transition from
WSW to W to NNWerly winds. Very cold air is lagging a bit behind,
with below-freezing temperature not expected to arrive until after
sunrise. Despite the diurnal arrival of the cold air, it does not
appear that it will matter much. Temperatures are expected to drop
into the 20s through the afternoon hours today with gusty
northwesterly winds. Winds may gust to 35mph at times, leading to
wind chills in the teens and single digits by sunset. Expect low
temperatures in the teens by Thursday morning with wind chills near
zero.

Guidance shows weak instability within the approaching air mass as
low-level lapse rates steepen with time. This instability, combined
with broad cyclonic flow, should allow for the formation of numerous
snow showers later this morning. These snow showers could mix with
rain at times early, but a full change-over to snow is expected once
the cold air fully sets in. The north-northwesterly wind component
aligns perfectly with Lake Michigan, allowing for maximized fetch
and lake-effect potential. While lake-effect snow totals will be
naturally much higher immediately downwind of the lake, some
enhanced totals may creep into portions of central Indiana. The
instability and broad lift of the approaching air mass may allow the
dominant lake-effect snow band to persist unusually far south this
afternoon into tonight. The exact location of this band will be
tricky to pin point since it may meander with time. Locally higher
snowfall, up to an inch or two, may be possible should this band
materialize and remain relatively stationary. Elsewhere, most
locations may see a dusting of snow to a half of an inch.

&&

.LONG TERM (Thursday through Tuesday)...
Issued at 257 AM EST Wed Jan 14 2026

A pattern shift is expected in the long range with a trend towards
colder than average temperatures. As mentioned in the short term
discussion, strong ridge-building is occurring over the eastern
Pacific. Ensemble guidance show this ridge becoming a dominant
feature while evolving into a classic Rex Block. Ridging over the
West Coast then reinforces troughing over the Midwest and Eastern
US. The developing blocking pattern then locks it in for at least a
week.

Global teleconnections support the developing pattern, with a
positive Pacific North American Pattern (PNA) and an Arctic
Oscillation (AO) quickly trending negative. A negative AO favors a
highly amplified jet stream while the positive phase PNA favors
ridging over the western US and troughing over the east. The
combination of the two will help prolong deep troughing over the
Midwest and eastern US. Troughing in turn promotes colder than
average temperatures.

Scaling down a bit, guidance is in good agreement showing a series
of vort maxes diving southeast within the broad northwesterly flow
on the eastern flank of the Pacific ridge. Each likely has an
attendant cold front with a reinforcing shot of cold air. Though
potent, these systems lack moisture. The first wave, expected to
arrive on Friday, will pass well to our north. A period of warm air
advection ahead of this system looks to provide sufficient
isentropic lift for light snowfall early Friday. Guidance is a bit
mixed on how strong this warm advection is, but an inch or two of
snow is not out of the question. Strong cold air advection and
northwesterly flow resumes following Friday`s system. Low-level
instability and embedded vort maxes aloft should allow for numerous
chances of light snow through the weekend.

Temperatures through the period, as alluded to above, look to be
well-below normal...except Friday, with the brief period of warm air
advection. Guidance is in good agreement showing sub-freezing highs
from Saturday to the end of the period. Sunday looks to be the
coldest day, with highs in the teens/low 20s and lows in the single
digits. Wind chills likely dip below zero for a good chunk of the
weekend into early next week.

Days 8-14...ensemble guidance is hinting at another pattern shift
late next week where ridging shifts eastward and flattens somewhat.
Such a pattern may allow for a trend towards warmer (but still below
normal) temperatures and greater precipitation chances. An east-west
oriented baroclinic zone may develop which will help determine the
eventual storm track. Ensemble guidance tends to keep the AO
strongly negative while allowing the PNA to trend negative as well,
which adds weight to the potential pattern described above. However,
ensemble guidance diverges considerably adding to forecast
uncertainty. That said, take individual models runs / deterministic
guidance with a grain of salt.

&&

.AVIATION (06Z TAF Issuance)...
Issued at 1234 AM EST Wed Jan 14 2026

Impacts:

- MVFR ceilings moving in from the northwest between 09-12Z.

- Light rain at BMG before 12z this morning.

- Scattered snow showers arriving after 12z for all terminals.

- Northwesterly wind gusts between 20-30 kts possible through 00z.

Discussion:

A cold front will push across Indiana from the north late tonight
into Wednesday morning. Weak forcing ahead of the front will bring a
period of light rain from BMG southward. No precipitation is
expected elsewhere until after the front arrives around 12z.
Precipitation may mix with rain initially, but should transition to
snow as temperatures fall through the morning. Scattered snow
showers and flurries may continue on and off through a majority of
the afternoon Wednesday. Brief reductions in visibility are likely
in the heavier snow showers.

MVFR cigs are expected in the wake of the cold front as an upper
trough and associated dynamics continue to push across Indiana. MVFR
ceilings persist through the afternoon, with guidance showing some
clearing around 00z onward. Extent of clearing is in question as
some guidance hangs onto stratus through 06z. Broad cyclonic flow
favors stratus lingering longer than modeled.

Winds initially out of the west become northwesterly behind the
front. Northwesterly wind gusts between 20-30 kts are possible at
times through the day. Winds gusts should diminish some what after
00z, but wind speeds should remain elevated around 10kt.


&&

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

$$

SHORT TERM...Eckhoff
LONG TERM...Eckhoff
AVIATION...Melo/Eckhoff
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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