National Weather Service Forecast for: Lafayette IN
Issued by: National Weather Service Indianapolis, IN
Updated: 3:46 am EDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 76. South southwest wind around 6 mph.
Mostly Clear

 Tuesday

Tuesday: Mostly sunny and hot, with a high near 92. Heat index values as high as 103. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Hot

 Tuesday
Night
Tuesday Night: Clear, with a low around 75. Southwest wind 6 to 8 mph.
Clear

 Wednesday

Wednesday: Sunny and hot, with a high near 93. Heat index values as high as 106. Southwest wind 5 to 8 mph.
Hot

 Wednesday
Night
Wednesday Night: Clear, with a low around 75. South southwest wind around 7 mph.
Clear

 Thursday

Thursday: Sunny and hot, with a high near 93. Southwest wind 5 to 9 mph.
Hot

 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 74. Southwest wind around 6 mph becoming calm in the evening.
Mostly Clear
then Slight
Chance
T-storms
 Friday

Friday: A slight chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Showers
Likely

 Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening.
Chance
T-storms
Lo 76 °F Hi 92 °F Lo 75 °F Hi 93 °F Lo 75 °F Hi 93 °F Lo 74 °F Hi 91 °F Lo 71 °F

Extreme Heat Warning
Hazardous Weather Outlook
 

Overnight
 
 Mostly clear, with a low around 76. South southwest wind around 6 mph.
Tuesday
 
 Mostly sunny and hot, with a high near 92. Heat index values as high as 103. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
 
 Clear, with a low around 75. Southwest wind 6 to 8 mph.
Wednesday
 
 Sunny and hot, with a high near 93. Heat index values as high as 106. Southwest wind 5 to 8 mph.
Wednesday Night
 
 Clear, with a low around 75. South southwest wind around 7 mph.
Thursday
 
 Sunny and hot, with a high near 93. Southwest wind 5 to 9 mph.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 74. Southwest wind around 6 mph becoming calm in the evening.
Friday
 
 A slight chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening.
Independence Day
 
 A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Monday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Lafayette IN.