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

23°F

-5°C

Humidity 44%
Wind Speed S 8 mph
Barometer 30.32 in (1027.8 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 20 Jan 5:54 pm EST
Extended Forecast for

5 Miles WSW Brookston IN

  • Tonight

    Tonight: A 20 percent chance of snow after 1am. Increasing clouds, with a temperature falling to near 19 by 8pm, then rising to around 28 during the remainder of the night. South wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 19 °F⇑

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Snow likely before 1pm. Partly sunny, with a high near 37. West wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. West wind 5 to 10 mph.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 5.

    High: 5 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Mostly cloudy and cold, with a high near 12.

    High: 12 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 5.

    Low: 5 °F

    Chance Snow

Detailed Forecast

Tonight
A 20 percent chance of snow after 1am. Increasing clouds, with a temperature falling to near 19 by 8pm, then rising to around 28 during the remainder of the night. South wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday
Snow likely before 1pm. Partly sunny, with a high near 37. West wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 19. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 26. West wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 2. West wind 5 to 10 mph.
Friday
Partly sunny and cold, with a high near 5.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
A 20 percent chance of snow after 1pm. Mostly cloudy and cold, with a high near 12.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 5.
Sunday
Partly sunny and cold, with a high near 18.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Sunny, with a high near 21.
Monday Night
Partly cloudy, with a low around 9.
Tuesday
Partly sunny, with a high near 27.
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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:
4:15 pm EST Jan 20, 2026
Forecast Valid:
6pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation