National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lafayette, Purdue University Airport (KLAF)

Lat: 40.41°NLon: 86.95°WElev: 604ft.

Fair

81°F

27°C

Humidity 82%
Wind Speed SE 3 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 3 Sep 9:54 pm EDT
Extended Forecast for

Lafayette IN

Heat Advisory September 3, 10:42pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 10:42pm until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Isolated showers and thunderstorms before 2pm, then isolated showers and thunderstorms after 5pm. Sunny and hot, with a high near 93. Heat index values as high as 102. West southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 93 °F

    Sunny then
    Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 2am. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. East northeast wind 3 to 6 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82. East northeast wind 5 to 7 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. East wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 82. East wind 3 to 6 mph.

    High: 82 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Calm wind becoming south southwest around 6 mph.
Friday
Isolated showers and thunderstorms before 2pm, then isolated showers and thunderstorms after 5pm. Sunny and hot, with a high near 93. Heat index values as high as 102. West southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 2am. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 30%.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. East northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 82. East northeast wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 59. East wind 3 to 6 mph.
Labor Day
Sunny, with a high near 82. East wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 62. Light east southeast wind.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny and hot, with a high near 91.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lafayette IN
 40.4°N 86.86°W (Elev. 656 ft)
Last Update:
10:17 pm EDT Sep 3, 2026
Forecast Valid:
10pm EDT Sep 3, 2026-6pm EDT Sep 10, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation