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.

Fair

68°F

20°C

Humidity 42%
Wind Speed E 17 mph
Barometer 30.20 in (1022.4 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 21 May 2:54 pm EDT
Extended Forecast for

West Lafayette IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. East northeast wind around 13 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. East northeast wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 70. East northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 58. East wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. North northeast wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 8pm. Mostly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Memorial Day

    Memorial Day: A slight chance of showers between 8am and 2pm. Partly sunny, with a high near 81. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. East northeast wind around 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 50. East northeast wind 9 to 13 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 70. East northeast wind around 11 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 58. East wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. North northeast wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 10 percent chance of showers before 8pm. Mostly cloudy, with a low around 58. Light and variable wind.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%.
Memorial Day
A slight chance of showers between 8am and 2pm. Partly sunny, with a high near 81. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 62. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Lafayette IN
 40.44°N 86.91°W (Elev. 699 ft)
Last Update:
3:45 pm EDT May 21, 2026
Forecast Valid:
3pm EDT May 21, 2026-6pm EDT May 27, 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