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

79°F

26°C

Humidity 52%
Wind Speed NW 13 G 22 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 22 Aug 3:54 pm EDT
Extended Forecast for

Dayton IN

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. Northwest wind around 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 58. West wind 9 to 14 mph becoming light after midnight.

    Low: 58 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 76. Light west northwest wind becoming northwest 5 to 10 mph in the morning.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 75 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 78. Northwest wind around 11 mph, with gusts as high as 20 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 58. West wind 9 to 14 mph becoming light after midnight.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 76. Light west northwest wind becoming northwest 5 to 10 mph in the morning.
Sunday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Monday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. Calm wind.
Tuesday
Sunny, with a high near 79. Calm wind.
Tuesday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 60. Calm wind.
Wednesday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 64. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 80.
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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:
4:45 pm EDT Aug 22, 2026
Forecast Valid:
4pm EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation