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Lafayette, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Lafayette IN
National Weather Service Forecast for:
Lafayette IN
Issued by: National Weather Service Indianapolis, IN |
| Updated: 3:45 am EDT Mar 23, 2026 |
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Today
 Becoming Sunny
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Tonight
 Increasing Clouds
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Tuesday
 Mostly Sunny
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Tuesday Night
 Partly Cloudy
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Wednesday
 Partly Sunny
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Wednesday Night
 Mostly Cloudy then Slight Chance T-storms
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Thursday
 Mostly Sunny then Chance T-storms
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Thursday Night
 Rain
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Friday
 Chance Rain/Snow
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| Hi 44 °F |
Lo 28 °F |
Hi 55 °F |
Lo 37 °F |
Hi 67 °F |
Lo 54 °F |
Hi 79 °F |
Lo 36 °F |
Hi 45 °F |
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Today
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Cloudy through mid morning, then gradual clearing, with a high near 44. North wind 13 to 15 mph, with gusts as high as 28 mph. |
Tonight
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Increasing clouds, with a low around 28. North northeast wind 5 to 9 mph becoming light east northeast after midnight. |
Tuesday
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Mostly sunny, with a high near 55. Calm wind becoming south 5 to 8 mph in the morning. |
Tuesday Night
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Partly cloudy, with a low around 37. Southeast wind 3 to 5 mph. |
Wednesday
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Partly sunny, with a high near 67. South wind 5 to 11 mph, with gusts as high as 21 mph. |
Wednesday Night
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A 20 percent chance of rain and thunderstorms after 2am. Mostly cloudy, with a low around 54. South southwest wind around 7 mph. |
Thursday
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A slight chance of rain and thunderstorms before 8am, then a chance of rain and thunderstorms after 2pm. Mostly sunny, with a high near 79. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. |
Thursday Night
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A chance of rain and thunderstorms before 8pm, then rain and possibly a thunderstorm between 8pm and 2am, then a chance of rain after 2am. Low around 36. West wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%. |
Friday
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A chance of rain and snow, mainly before 8am. Partly sunny, with a high near 45. North wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. |
Friday Night
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Mostly clear, with a low around 27. North wind 3 to 8 mph. |
Saturday
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Sunny, with a high near 52. |
Saturday Night
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Mostly clear, with a low around 32. |
Sunday
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Partly sunny, with a high near 59. |
Forecast from NOAA-NWS
for Lafayette IN.
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Weather Forecast Discussion
038
FXUS63 KIND 230706
AFDIND
Area Forecast Discussion
National Weather Service Indianapolis IN
306 AM EDT Mon Mar 23 2026
.KEY MESSAGES...
- Much cooler today with a warming trend through the workweek.
- Showers and thunderstorms possible Thursday and Thursday Night.
- Cooler on Friday, with a warming trend resuming over the weekend.
&&
.SHORT TERM (Today and tonight)...
Issued at 306 AM EDT Mon Mar 23 2026
Brisk northerly flow continues behind yesterday`s cold front. North-
northwesterly winds between 15-20kt gusting to 30kt have been common
through 06z. These winds are expected to remain brisk through
sunrise, though very gradually decreasing with time. Winds continue
to diminish through the morning and into the afternoon, remaining
above 10kt however. Winds diminish more substantially after 00z as
surface high pressure builds in from the north.
Low stratus currently blankets central Indiana within the post-front
environment. Clouds stick around through the morning hours, and
likely into the afternoon. Clearing is anticipated, albeit slowly,
as surface flow transitions from cyclonic to anticyclonic.
Additionally, diurnal mixing should help break up cloud cover to
some extent (from OVC status to SCT/BKN stratocumulus) but may also
allow it to persist through the afternoon. Low clouds should clear
completely by 00z with high cirrus building in around the same time.
Temperatures this afternoon are expected to be much cooler than
yesterday, by as much as 40 to 50 degrees. Cold air advection
continues within the brisk north-northwesterly flow. Highs today are
expected to be in the upper 40s to low 50s. Lows tonight should dip
into the upper 20s/low 30s under good radiative cooling conditions.
&&
.LONG TERM (Tuesday through Sunday)...
Issued at 306 AM EDT Mon Mar 23 2026
Anomalous ridging out west combined with low-amplitude troughing
over the northeast will promote progressive northwesterly flow aloft
across the Midwest. This pattern has allowed for variable conditions
with periods of above-normal warmth interrupted by brief but potent
cold fronts. This is expected to continue, as the cold air mass
behind yesterday`s front will already be moderating by the start of
the Long Range.
Surface high pressure slides east of Indiana on Tuesday, with winds
taking on a southerly component by the afternoon. Combined with
strong sunshine and modest warm air advection aloft, temperatures
are expected to rebound into the mid to upper 50s, possibly near 60.
This trend continues into Wednesday, though at an accelerated rate
due to a strengthening low-level jet. Highs may climb into the upper
60s/low 70s Wednesday afternoon.
MIDWEEK THUNDERSTORM POTENTIAL
The low-level jet reaches peak intensity late Wednesday night into
Thursday. Some models are hinting at a subtle shortwave arriving
Wednesday night. Combined with isentropic lift from warm air
advection and surface convergence at the nose of the LLJ, these
models show isolated convection developing before sunrise Thursday.
Instability appears low, which would limit updraft intensity...but
shear is plentiful and long straight hodographs suggest a non-zero
hail risk.
The pattern then repeats again with another strong cold front
modeled to drop south late Thursday. Temperatures may once again
push 80 degrees across the region before the front arrives. The
synoptic set up is actually very similar to yesterday. Strong
warm/moist advection, broad synoptic-scale forcing, with moderate to
high levels of shear and instability. This all points towards
another round of showers and thunderstorms, with the potential for
severe weather, late Thursday.
Guidance is already trending towards anafrontal convective
development, with elevated storms intensifying behind a shallow but
strong cold front surging southward. Details still need to be ironed
out, including timing and how steep mid/upper-level lapse rates are
which will determine storm intensity behind the front. Shear is
plentiful, and given the elevated nature of modeled convection it
would appear large hail is again the primary hazard.
THIS WEEKEND ONWARD
Another significant cool-down is likely by Friday with highs back
into the 40s/50s. As with previous iterations of this pattern, the
cool-down is short-lived and a warming trend begins again over the
weekend. Temperatures may once again push into the 60s/70s early
next week.
&&
.AVIATION (06Z TAF Issuance)...
Issued at 144 AM EDT Mon Mar 23 2026
Impacts:
- NNW winds gusting to 20-30kt before 12z Monday
- IFR/MVFR ceilings through 14z Monday
Discussion:
Brisk northerly winds continue behind a cold front that passed
through earlier Sunday. Winds out of the north-northwest are
sustained between 15-20kt gusting to 20-30kt at times. These winds
should gradually diminish through the night but remain above 10kt
with gusts to 25kt at times. Winds diminish further during the day
Monday while gradually gaining a northeasterly direction.
MVFR ceilings extend across central Indiana with pockets of IFR
conditions also being reported. Ceilings may oscillate between
IFR/MVFR through 14z. After that, slow improvement is expected as
low-level flow becomes anticyclonic.
&&
.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SHORT TERM...Eckhoff
LONG TERM...Eckhoff
AVIATION...Eckhoff
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