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

Lafayette, Purdue University Airport (KLAF)

Lat: 40.41°NLon: 86.95°WElev: 604ft.

Mostly Cloudy

26°C

78°F

Humidity 69%
Wind Speed N 6 km/h
Barometer 1019.1 mb (30.11 in)
Dewpoint 19°C (67°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 18 Jul 1:54 pm EDT
Extended Forecast for

2 Miles SW Lafayette, Purdue University Airport IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 29. Calm wind.

    High: 29 °C

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers between 2am and 5am, then isolated showers and thunderstorms after 5am. Partly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.

    Low: 21 °C

    Partly Cloudy
    then Isolated
    T-storms

  • Saturday

    Saturday: Scattered showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 5pm, then showers and thunderstorms likely after 5pm. Partly sunny, with a high near 29. Southwest wind 8 to 13 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 29 °C

    Showers
    Likely then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 22. Southwest wind 5 to 10 km/h becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    Low: 22 °C

    T-storms
    Likely then
    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 28. North wind 3 to 8 km/h.

    High: 28 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 19. East wind 3 to 8 km/h.

    Low: 19 °C

    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 26. East southeast wind 8 to 11 km/h.

    High: 26 °C

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 20. East southeast wind 8 to 10 km/h.

    Low: 20 °C

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 31. South wind 8 to 11 km/h.

    High: 31 °C

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 29. Calm wind.
Tonight
Isolated showers between 2am and 5am, then isolated showers and thunderstorms after 5am. Partly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.
Saturday
Scattered showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 5pm, then showers and thunderstorms likely after 5pm. Partly sunny, with a high near 29. Southwest wind 8 to 13 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.
Saturday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 22. Southwest wind 5 to 10 km/h becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 28. North wind 3 to 8 km/h.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 19. East wind 3 to 8 km/h.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 26. East southeast wind 8 to 11 km/h.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 20. East southeast wind 8 to 10 km/h.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 31. South wind 8 to 11 km/h.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 22. South wind 5 to 8 km/h.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 23.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Lafayette, Purdue University Airport IN
 40.42°N 86.94°W (Elev. 630 m)
Last Update:
1:45 pm EDT Jul 18, 2025
Forecast Valid:
2pm EDT Jul 18, 2025-6pm EDT Jul 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation