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

55°F

13°C

Humidity 55%
Wind Speed N 14 mph
Barometer 30.21 in (1023.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 20 May 10:54 pm EDT
Extended Forecast for

Lafayette IN

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Northeast wind around 8 mph.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. East northeast wind 11 to 15 mph, with gusts as high as 22 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 50. East northeast wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 70. East northeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 70 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 60. East wind around 8 mph becoming south southeast after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. West southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 59. Light and variable wind. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 79 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. Northeast wind around 8 mph.
Thursday
Mostly sunny, with a high near 68. East northeast wind 11 to 15 mph, with gusts as high as 22 mph.
Thursday Night
Increasing clouds, with a low around 50. East northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 70. East northeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 60. East wind around 8 mph becoming south southeast after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. West southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 59. Light and variable wind. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.
Memorial Day
A 20 percent chance of showers. Mostly cloudy, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 81.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 40 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:
Lafayette IN
 40.42°N 86.88°W (Elev. 630 ft)
Last Update:
10:45 pm EDT May 20, 2026
Forecast Valid:
11pm EDT May 20, 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