Current conditions at

Lafayette, Purdue University Airport (KLAF)

Lat: 40.41°NLon: 86.95°WElev: 604ft.

Fair

94°F

34°C

Humidity 49%
Wind Speed W 10 mph
Barometer 29.98 in (1014.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 4 Sep 1:54 pm EDT
Extended Forecast for

Lafayette, Purdue University Airport IN

Heat Advisory September 4, 02:10pm until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 02:10pm until September 5, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 94 °F

    Hot

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 4am.  Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    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 102. Calm wind becoming north northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. East northeast wind 5 to 8 mph.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. East northeast wind 5 to 8 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. Light east southeast wind.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 94. Heat index values as high as 105. West wind around 8 mph.
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 102. 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 8 mph after midnight. Winds could gust as high as 18 mph.
Wednesday
Mostly sunny and hot, with a high near 92.
Wednesday Night
A 30 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lafayette, Purdue University Airport IN
 40.42°N 86.91°W (Elev. 604 ft)
1:56 pm EDT Sep 4, 2026
2pm EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database