Hazardous Weather Conditions
Current conditions at
Lafayette, Purdue University Airport (KLAF)
Lat: 40.41°NLon: 86.95°WElev: 604ft.
Fair
89°F
32°C
| Humidity | 63% |
| Wind Speed | Calm |
| Barometer | 29.92 in (1012.4 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 99°F (37°C) |
| Last update | 4 Sep 7:54 pm EDT |
Extended Forecast for
Lafayette IN
Heat Advisory September 4, 08:34pm until September 5, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Tonight
Low: 73 °F
Mostly Clear
then Slight
Chance
T-stormsSaturday

High: 92 °F
Slight Chance
T-stormsSaturday Night

Low: 64 °F
Partly Cloudy
Sunday

High: 81 °F
Sunny
Sunday Night

Low: 58 °F
Mostly Clear
Labor Day

High: 83 °F
Sunny
Monday Night

Low: 62 °F
Partly Cloudy
Tuesday

High: 88 °F
Mostly Sunny
Detailed Forecast
Tonight
A 10 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 73. Calm wind.
Saturday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 101. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 64. East northeast wind 5 to 8 mph.
Sunday
Sunny, with a high near 81. East northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 62. Light east southeast wind.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 70. Calm wind becoming south 5 to 9 mph after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. West southwest wind around 13 mph, with gusts as high as 23 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Lafayette IN
40.42°N 86.88°W (Elev. 630 ft)
40.42°N 86.88°W (Elev. 630 ft)
8:15 pm EDT Sep 4, 2026
8pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026



