National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lafayette, Purdue University Airport (KLAF)

Lat: 40.41°NLon: 86.95°WElev: 604ft.

Fair

59°F

15°C

Humidity 90%
Wind Speed N 3 mph
Barometer 30.03 in (1017.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 28 Sep 8:54 pm EDT
Extended Forecast for

Williamsport IN

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 53. Light northeast wind.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. Light south southeast wind.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. South wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 67. South wind 6 to 8 mph.

    Low: 67 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 83. South southwest wind 8 to 10 mph, with gusts as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 83 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. North wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 60 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers. Mostly cloudy, with a high near 68. North northeast wind around 9 mph. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 53. Northeast wind 5 to 9 mph.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 53. Light northeast wind.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 59. Light south southeast wind.
Wednesday
Mostly sunny, with a high near 85. South wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 67. South wind 6 to 8 mph.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 83. South southwest wind 8 to 10 mph, with gusts as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. North wind 3 to 5 mph. Chance of precipitation is 70%.
Friday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers. Mostly cloudy, with a high near 68. North northeast wind around 9 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53. Northeast wind 5 to 9 mph.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 68. East wind 6 to 8 mph.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport IN
 40.28°N 87.3°W (Elev. 630 ft)
Last Update:
9:36 pm EDT Sep 28, 2026
Forecast Valid:
9pm EDT Sep 28, 2026-6pm EDT Oct 5, 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