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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: 9:15 pm EDT Jul 10, 2026 |
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Tonight
 Scattered T-storms and Patchy Fog
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Saturday
 Scattered T-storms and Areas Fog
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Saturday Night
 Mostly Cloudy
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Sunday
 Mostly Sunny
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Sunday Night
 Partly Cloudy
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Monday
 Sunny
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Monday Night
 Mostly Clear
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Tuesday
 Sunny
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Tuesday Night
 Mostly Clear
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| Lo 67 °F |
Hi 84 °F |
Lo 66 °F |
Hi 84 °F |
Lo 64 °F |
Hi 87 °F |
Lo 66 °F |
Hi 89 °F |
Lo 70 °F |
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Flood Advisory
Flood Warning
Hazardous Weather Outlook
Tonight
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Scattered showers and thunderstorms, mainly before 5am. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%. |
Saturday
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Scattered showers and thunderstorms, mainly between 10am and 11am. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 84. Calm wind becoming east northeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%. |
Saturday Night
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Mostly cloudy, with a low around 66. Northeast wind 3 to 7 mph. |
Sunday
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Mostly sunny, with a high near 84. East northeast wind 3 to 8 mph. |
Sunday Night
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Partly cloudy, with a low around 64. East northeast wind around 6 mph becoming calm in the evening. |
Monday
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Sunny, with a high near 87. Calm wind becoming east northeast around 6 mph in the afternoon. |
Monday Night
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Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening. |
Tuesday
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Sunny, with a high near 89. Calm wind. |
Tuesday Night
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Mostly clear, with a low around 70. Calm wind. |
Wednesday
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Sunny, with a high near 90. Calm wind becoming west around 6 mph in the afternoon. |
Wednesday Night
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Mostly clear, with a low around 69. |
Thursday
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A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88. |
Thursday Night
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A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69. |
Friday
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A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. |
Forecast from NOAA-NWS
for Lafayette IN.
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Weather Forecast Discussion
982
FXUS63 KIND 110012
AFDIND
Area Forecast Discussion
National Weather Service Indianapolis IN
812 PM EDT Fri Jul 10 2026
.KEY MESSAGES...
- Continued threats for thunderstorms with heavy rain and possibly
localized flooding through Saturday; an isolated strong storm
with damaging winds cannot be ruled out
- Warmer and drier again next week, though with more modest humidity
than experienced the first week of the month
&&
.DISCUSSION (This evening through Friday)...
Issued at 236 PM EDT Fri Jul 10 2026
Rest of This Afternoon...
Scattered convection will continue to develop this afternoon,
especially north along and ahead of a slow moving front. Will have
chance PoPs north half or so for these and slight chance PoPs south
where there is less forcing for convection. The main threats from
storms this afternoon will be locally heavy rain and resultant
flooding. However, gusty winds are also possible.
Tonight and Saturday...
Uncertainty is higher than usual tonight with uncertainties in
smaller scale upper forcing.
Convection along the boundary near the northern forecast area will
likely diminish some this evening as heating is lost. Additional
convection will move in later this evening and/or overnight as
pieces of upper energy (and a potential MCV), with the focus on the
southern forecast area. CAMs all have differing solutions in timing
and coverage of the convection, which adds to the higher uncertainty
for PoPs.
Given the uncertainty in the forcing, will keep PoPs mainly in the
chance category. Will go highest across the south where the best
upper energy should move through. Will time the highest PoPs after
midnight, but details beyond that are quite uncertain.
Forcing will continue into Saturday morning, and some interaction
will occur with the old surface front across the northern forecast
area. Will go with chance category PoPs most areas. Saturday
afternoon, the boundary will sink south, allowing chances for rain
to diminish north but continue south.
The potential MCV moving in tonight into Saturday will increase
shear across mainly the southern forecast area. This might be
enough for an isolated severe storm with damaging winds.
Lows tonight will be in the middle 60s to around 70 with highs on
Saturday in the mid 80s.
Sunday...
A large upper high will exert its influence across the far northern
forecast area and will keep that area dry. However, an upper trough
will still be close enough to the remainder of the area to keep
some chance PoPs around, mainly during the afternoon when heating is
maximized.
Monday through Wednesday...
The upper high will expand and increase its influence across central
Indiana during this period. This will bring increasingly warmer
temperatures to the area. Highs in the upper 80s on Monday will give
way to mainly lower 90s by Wednesday. Dewpoints will also rise,
reaching the 70s most areas by Wednesday. Resultant heat indices
will peak in the middle to perhaps upper 90s.
The far south will remain close enough to the old upper trough on
Monday to keep some low PoPs around. Will keep Tuesday and Wednesday
dry with stronger influence from the high, but cannot rule out an
isolated storm in the heat of the day.
Thursday and beyond...
Uncertainty is high on when the upper high will break down some and
allow upper forcing to return to the area. This may start on
Thursday into Friday. Will have some low PoPs around with below
average confidence.
Temperatures will be slightly cooler with highs mainly in the upper
80s.
&&
.AVIATION (00Z TAF Issuance)...
Issued at 812 PM EDT Fri Jul 10 2026
Impacts:
- Scattered convection at times through through the night which
could linger into the morning
- MVFR visibilities in fog possible at most sites overnight with
MVFR ceilings not out of the question within showers and storms
Discussion:
Showers and storms are expected overnight. Storms are already
ongoing at LAF at the start of the period with additional storms
possible between 06z and 12z at all other sites. Lowered ceilings
and vis, near and into MVFR, are possible within storms. Fog will
also be possible prior to daybreak which could lead to MVFR
visibilities as well.
Winds will largely be light and variable overnight outside of higher
gusts in storms. By tomorrow, wind direction will be predominately
out of the ENE and generally less than 7 kt.
&&
.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
AVIATION...KF
DISCUSSION...50
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