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

67°F

19°C

Humidity 66%
Wind Speed Calm
Barometer 30.21 in (1022.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 4 Jun 8:54 am EDT
Extended Forecast for

Dayton IN

  • Today

    Today: Sunny, with a high near 85. South southwest wind 6 to 11 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 64. South southwest wind 7 to 9 mph.

    Low: 64 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 84. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 29 mph.

    High: 84 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 67. Southwest wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Scattered
    T-storms then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. West southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then isolated showers. Low around 66. West southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers

  • Sunday

    Sunday: Isolated showers before 8am, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 86 °F

    Isolated
    Showers then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. East southeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Scattered
    T-storms

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. South southeast wind 6 to 10 mph. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 85. South southwest wind 6 to 11 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 64. South southwest wind 7 to 9 mph.
Friday
Mostly sunny, with a high near 84. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 29 mph.
Friday Night
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 67. Southwest wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. West southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 2am, then isolated showers. Low around 66. West southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Isolated showers before 8am, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
Scattered showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. East southeast wind 3 to 5 mph. Chance of precipitation is 30%.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. South southeast wind 6 to 10 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southeast wind around 7 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton IN
 40.37°N 86.77°W (Elev. 666 ft)
Last Update:
8:45 am EDT Jun 4, 2026
Forecast Valid:
9am EDT Jun 4, 2026-6pm EDT Jun 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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