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

56°F

13°C

Humidity 29%
Wind Speed Vrbl 5 mph
Barometer 30.26 in (1024.9 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 20 Apr 6:54 pm EDT
Extended Forecast for

Dayton IN

  • Tonight

    Tonight: Mostly clear, with a low around 44. Calm wind becoming south 5 to 9 mph in the evening.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 30 mph.

    High: 76 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of thunderstorms before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 75. West southwest wind around 9 mph. Chance of precipitation is 10%.

    High: 75 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. South southwest wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 62. South wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75. South wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 53. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 44. Calm wind becoming south 5 to 9 mph in the evening.
Tuesday
Mostly sunny, with a high near 76. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of thunderstorms before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 75. West southwest wind around 9 mph. Chance of precipitation is 10%.
Wednesday Night
Mostly clear, with a low around 57. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 79. South southwest wind 7 to 16 mph, with gusts as high as 25 mph.
Thursday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 62. South wind 11 to 13 mph, with gusts as high as 21 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75. South wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 53. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 71. North wind 7 to 10 mph.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 50.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 71.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton IN
 40.37°N 86.77°W (Elev. 666 ft)
Last Update:
6:46 pm EDT Apr 20, 2026
Forecast Valid:
7pm EDT Apr 20, 2026-6pm EDT Apr 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