Current conditions at

Lafayette, Purdue University Airport (KLAF)

Lat: 40.41°NLon: 86.95°WElev: 604ft.

Fair

74°F

23°C

Humidity 91%
Wind Speed W 3 mph
Barometer 29.99 in (1014.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 3 Sep 5:54 am EDT
Extended Forecast for

2 Miles SSW Lafayette, Purdue University Airport IN

Heat Advisory September 3, 06:25am until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 06:25am until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 93 °F

    Sunny then
    Isolated
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light south southwest wind.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 93. Heat index values as high as 106. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 93 °F

    Hot

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear
    then Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 87. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 87 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. East northeast wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. East northeast wind 3 to 7 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Today
Isolated showers and thunderstorms after 3pm. Sunny and hot, with a high near 93. Heat index values as high as 105. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 73. Light south southwest wind.
Friday
Sunny and hot, with a high near 93. Heat index values as high as 106. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 66. East northeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 82. East northeast wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 61. East 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
Mostly clear, with a low around 63. Light east wind.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lafayette, Purdue University Airport IN
 40.4°N 86.94°W (Elev. 568 ft)
6:15 am EDT Sep 3, 2026
6am EDT Sep 3, 2026-6pm EDT Sep 9, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database