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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: 12:31 am EDT May 3, 2026
 
Overnight

Overnight: Clear, with a low around 38. Calm wind becoming south southwest around 5 mph.
Clear

Sunday

Sunday: Isolated showers after 2pm.  Increasing clouds, with a high near 62. Southwest wind 8 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 20%.
Mostly Sunny
then Isolated
Showers
Sunday
Night
Sunday Night: Isolated showers before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 48. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 10%.
Isolated
Showers then
Mostly Clear
Monday

Monday: Scattered showers and thunderstorms after 2pm.  Mostly sunny, with a high near 74. South southwest wind 6 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.
Sunny then
Scattered
Showers
Monday
Night
Monday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 57. South southwest wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Scattered
T-storms
Tuesday

Tuesday: Showers and possibly a thunderstorm.  High near 63. South southwest wind 8 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely then
Showers
Tuesday
Night
Tuesday Night: Showers and possibly a thunderstorm before 8pm, then showers likely.  Low around 43. North wind 7 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%.
Showers

Wednesday

Wednesday: A 30 percent chance of showers, mainly after 2pm.  Mostly cloudy, with a high near 56. North wind 5 to 7 mph.
Chance
Showers
Wednesday
Night
Wednesday Night: A 30 percent chance of showers, mainly before 2am.  Mostly cloudy, with a low around 42. North wind 3 to 6 mph.
Chance
Showers
Lo 38 °F Hi 62 °F Lo 48 °F Hi 74 °F Lo 57 °F Hi 63 °F Lo 43 °F Hi 56 °F Lo 42 °F

Hazardous Weather Outlook
 

Overnight
 
Clear, with a low around 38. Calm wind becoming south southwest around 5 mph.
Sunday
 
Isolated showers after 2pm. Increasing clouds, with a high near 62. Southwest wind 8 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Sunday Night
 
Isolated showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Monday
 
Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. South southwest wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
 
Scattered showers and thunderstorms. Mostly cloudy, with a low around 57. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
 
Showers and possibly a thunderstorm. High near 63. South southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
 
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 43. North wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Wednesday
 
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 56. North wind 5 to 7 mph.
Wednesday Night
 
A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 42. North wind 3 to 6 mph.
Thursday
 
A 30 percent chance of showers, mainly after 8am. Partly sunny, with a high near 59. West northwest wind 5 to 13 mph, with gusts as high as 22 mph.
Thursday Night
 
A 20 percent chance of showers. Partly cloudy, with a low around 42.
Friday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 64.
Friday Night
 
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Saturday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 70.

 

Forecast from NOAA-NWS for Lafayette IN.

Weather Forecast Discussion
304
FXUS63 KIND 030432
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
1232 AM EDT Sun May 3 2026

.KEY MESSAGES...

- Below normal temps to continue through the weekend with frost
  possible again tonight

- Milder but still largely below normal for the upcoming week, with
  multiple chances for rain; heavy rain possible at times

&&

.FORECAST UPDATE...
Issued at 934 PM EDT Sat May 2 2026

No major changes needed to the forecast with conditions generally
evolving as expected. The main focus continues to be on the expected
frost tonight with models generally remaining in line with earlier
runs. A couple runs such as the WRF-ARW are running a few degrees
cooler with the potential for frost to the west of the current
Advisory area, but this model often overdoes radiational cooling.
With the winds becoming more southwesterly during the overnight,
modest moisture advection and at least some cirrus moving in from
the northwest should keep frost mostly limited to the current area
covered by headlines.

&&

.DISCUSSION (This evening through Saturday)...
Issued at 312 PM EDT Sat May 2 2026

A relatively chilly start to the forecast period with NW flow
aloft. Tonight will again see lows in the 30s and with mostly clear
skies and light winds, there is another chance for frost over most
of central Indiana.

The start of the new week will see multiple chances for rain as some
waves move through and then a cold front Tuesday. Outside of the
rain, wind gusts of 25 to 30 mph are expected to mix down, mainly
during the afternoon hours. Late Monday into the overnight hours,
thunderstorms ahead of the front are possible with a marginal risk
of severe weather as cool temperatures aloft could help increase
lapse rates and instability. Hail and gusty winds will be the main
threat. Best chances for rain come as the front itself gets closer
and approaches from the NW, so Monday night throughout the day
Tuesday. Rain could continue to linger into Wednesday. Around half
an inch, possibly up to an inch in some spots, is expected with this
system.

Along and behind the front will again see below normal temperatures
for mid to late week. Lows for Wednesday and Thursday nights are
forecast to be in the low 40s but the potential to dip into the 30s
can`t yet be ruled out.

An upper wave late week will again lead to slight precipitation
chances but confidence is low at this point.

&&

.AVIATION (06Z TAF Issuance)...
Issued at 1231 AM EDT Sun May 3 2026

Impacts:

- VFR this Taf period

Discussion:

GOES19 shows clear skies across the TAF sites as strong surface
high pressure was centered over southern IL and southern IN. This
high will slowly move east today, but continue to maintain control
of Indiana/s weather. Models suggest the arrival of mid level AC
this afternoon associated with ongoing warm air advection aloft.
This will result in the arrival of VFR cigs this afternoon which
will persist through the Taf period. An isolated sprinkle or very
light shower will be possible with these clouds, but confidence is
not high enough for a mention at this point.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
Frost Advisory until 9 AM EDT this morning for INZ030-031-
037>042-046>049-054>057-062>065-070>072.

&&

$$

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






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