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.

Fog/Mist

40°F

4°C

Humidity 89%
Wind Speed Calm
Barometer 29.94 in (1014.1 mb)
Dewpoint 37°F (3°C)
Visibility 5.00 mi
Last update 7 Jan 8:54 am EST
Extended Forecast for

Lafayette, Purdue University Airport IN

  • Today

    Today: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. South southwest wind 3 to 8 mph.

    High: 50 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. South wind 6 to 8 mph.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain likely after 1pm. Mostly cloudy, with a high near 61. South wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Mostly Cloudy
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 4am, then rain likely. Low around 52. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 59. Southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 59 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 40. Northeast wind around 6 mph.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain. Mostly cloudy, with a high near 46. North wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 46 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 23. West wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 23 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A 20 percent chance of snow after 1pm. Partly sunny, with a high near 29. West northwest wind around 14 mph, with gusts as high as 25 mph.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. South southwest wind 3 to 8 mph.
Tonight
Partly cloudy, with a low around 37. South wind 6 to 8 mph.
Thursday
Rain likely after 1pm. Mostly cloudy, with a high near 61. South wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 4am, then rain likely. Low around 52. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 59. Southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.
Friday Night
A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 40. Northeast wind around 6 mph.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 46. North wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 23. West wind 10 to 13 mph, with gusts as high as 23 mph.
Sunday
A 20 percent chance of snow after 1pm. Partly sunny, with a high near 29. West northwest wind around 14 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 19. West southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Lafayette, Purdue University Airport IN
 40.42°N 86.94°W (Elev. 630 ft)
Last Update:
9:15 am EST Jan 7, 2026
Forecast Valid:
9am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
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