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

43°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in (1021.3 mb)
Dewpoint 43°F (6°C)
Visibility 1.75 mi
Last update 20 Nov 7:54 am EST
Extended Forecast for

5 Miles WSW Brookston IN

  • Today

    Today: Patchy fog before 10am. Otherwise, cloudy, with a high near 50. Calm wind becoming south around 5 mph in the afternoon.

    High: 50 °F

    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain. Cloudy, with a low around 47. South wind around 5 mph becoming calm.

    Low: 47 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 50 percent chance of rain. Cloudy, with a high near 54. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 54 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 35. North wind around 5 mph.

    Low: 35 °F

    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Northeast wind around 5 mph.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, cloudy, with a high near 50. Calm wind becoming south around 5 mph in the afternoon.
Tonight
A 20 percent chance of rain. Cloudy, with a low around 47. South wind around 5 mph becoming calm.
Friday
A 50 percent chance of rain. Cloudy, with a high near 54. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 35. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 49. Northeast wind around 5 mph.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 36.
Monday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 54.
Monday Night
Rain likely, mainly after 1am. Cloudy, with a low around 42. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Brookston IN
 40.58°N 86.96°W (Elev. 728 ft)
Last Update:
6:29 am EST Nov 20, 2025
Forecast Valid:
8am EST Nov 20, 2025-6pm EST Nov 26, 2025
 
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