|
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: 7:45 am EDT Apr 21, 2026 |
|
Today
 Mostly Sunny then Mostly Sunny and Breezy
|
Tonight
 Scattered T-storms
|
Wednesday
 Isolated T-storms
|
Wednesday Night
 Partly Cloudy
|
Thursday
 Mostly Sunny
|
Thursday Night
 Partly Cloudy then Slight Chance T-storms
|
Friday
 Chance Showers then Showers
|
Friday Night
 Showers then Chance Showers
|
Saturday
 Slight Chance Showers
|
| Hi 75 °F |
Lo 59 °F |
Hi 75 °F |
Lo 58 °F |
Hi 79 °F |
Lo 62 °F |
Hi 75 °F |
Lo 54 °F |
Hi 69 °F |
|
Hazardous Weather Outlook
Today
|
Mostly sunny, with a high near 75. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph. |
Tonight
|
Scattered showers and thunderstorms. Mostly cloudy, with a low around 59. Southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
Wednesday
|
Isolated thunderstorms before 8am, then isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. West southwest wind around 7 mph. Chance of precipitation is 20%. |
Wednesday Night
|
Partly cloudy, with a low around 58. South southwest wind 3 to 5 mph. |
Thursday
|
Mostly sunny, with a high near 79. South southwest wind 6 to 11 mph, with gusts as high as 23 mph. |
Thursday Night
|
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 62. South wind around 9 mph, with gusts as high as 20 mph. |
Friday
|
A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 75. South southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. |
Friday Night
|
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 54. Southwest wind 6 to 8 mph becoming west northwest after midnight. Chance of precipitation is 80%. |
Saturday
|
A 20 percent chance of showers. Mostly sunny, with a high near 69. North wind 6 to 9 mph. |
Saturday Night
|
Partly cloudy, with a low around 47. Northeast wind 5 to 7 mph. |
Sunday
|
Mostly sunny, with a high near 71. |
Sunday Night
|
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53. |
Monday
|
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73. |
Forecast from NOAA-NWS
for Lafayette IN.
|
Weather Forecast Discussion
165
FXUS63 KIND 211028
AFDIND
Area Forecast Discussion
National Weather Service Indianapolis IN
628 AM EDT Tue Apr 21 2026
.KEY MESSAGES...
- Breezy today with gusts in the 30 to 40 mph range this afternoon
- Scattered showers and thunderstorms tonight into Wednesday
- Rain chances again Friday into Saturday and early next week
- Above normal temperatures through early next week
&&
.DISCUSSION (Today through Monday)...
Issued at 237 AM EDT Tue Apr 21 2026
Today...
Breezy conditions are expected today across central Indiana. A
relatively tight pressure gradient between high pressure to the
southeast and low pressure to the northwest will increase sustained
winds. At the same time, mixing will tap into some stronger winds
aloft. This will produce gusts into the 30 to 35 mph range, with
some gusts near 40 mph possible.
The mixing will also bring dewpoints down, even with moisture trying
to advect in from the southwest. Went closer to the 25th percentile
of guidance for dewpoints this afternoon. Minimum humidity will be
in the 20 to 30 percent range. Fortunately, fuels are moist enough
that no significant fire danger is expected.
The gusty southwest winds combined with sunshine (filtering through
high clouds at times) will boost temperatures into the middle 70s
for highs.
Convection forming north of central Indiana should remain north of
the area through the day.
Tonight through Thursday...
An upper wave and a cold front will be the forcing for the
thunderstorms that develop during the afternoon. Forcing will move
ahead of the cold front, allowing some convection to move south into
central Indiana tonight. Moisture isn`t great, and surface dewpoints
will only be in the 40s and 50s.
Thus, instability doesn`t look great for the convection. Shear isn`t
good either. However, stronger winds won`t be far off the ground,
with 40 plus knots starting about 3000ft off the ground per forecast
soundings. With an inverted V sounding, wouldn`t be surprised if a
few storms have 40-50mph gusts, with a very low chance for a severe
gust. Small hail is also possible.
With the limited moisture, feel coverage will be more scattered than
numerous. Kept PoPs below the likely category.
The surface front will briefly stall out in the vicinity Wednesday
before returning north. With little upper support, just kept some
low PoPs around during Wednesday. Brief upper ridging will build in
for Thursday, providing dry conditions.
Depending on where the front ends up Wednesday, there could be some
clouds/fog around in the morning.
Highs will remain warm, reaching around 80 by Thursday.
Friday and beyond...
Upper energy coming out of an upper trough to the west will work
with a cold front to bring some showers and thunderstorms on Friday.
Weak forcing could keep lower coverage of rain on Saturday. Ridging
will bring dry conditions Sunday, but rain could return early next
week with another stronger upper trough. Temperatures look to remain
above normal.
However, confidence remains low for Saturday into early next week
with guidance differing on the details of how things will evolve.
&&
.AVIATION (12Z TAF Issuance)...
Issued at 627 AM EDT Tue Apr 21 2026
Impacts:
- Marginal LLWS at all terminals continues this morning
- Southwest wind gusts 25-30kt this afternoon
- Scattered convection this evening into the overnight
Discussion:
Marginal LLWS conditions early will end as mixing kicks in during
the day, and this mixing will allow for gusty winds up to 30kt or
so. Gustiness will diminish early evening, but LLWS should return
overnight tonight.
Outside of any convection, VFR conditions are expected. High clouds
at times will give way to mid clouds late day into the night.
Scattered convection will move in from the north mainly after 00Z
Wednesday, and these will spread south through the night.
&&
.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
AVIATION...50
DISCUSSION...50
View a Different U.S. Forecast Discussion Location
(In alphabetical order by state)
|
|
|
|