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Hazardous Weather Conditions

Current conditions at

Lafayette, Purdue University Airport (KLAF)

Lat: 40.41°NLon: 86.95°WElev: 604ft.

Fair

79°F

26°C

Humidity 85%
Wind Speed Calm
Barometer 29.96 in (1013.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 3 Sep 11:54 pm EDT
Extended Forecast for

Dayton IN

Heat Advisory September 4, 12:01am until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 12:01am until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Isolated showers and thunderstorms before 2pm, then isolated showers and thunderstorms after 5pm. Sunny and hot, with a high near 93. Heat index values as high as 102. West southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 93 °F

    Sunny then
    Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 2am. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. East northeast wind 5 to 7 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82. East northeast wind 6 to 9 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. East wind around 6 mph.

    Low: 59 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 82. East wind around 6 mph.

    High: 82 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 72. South wind 3 to 6 mph.
Friday
Isolated showers and thunderstorms before 2pm, then isolated showers and thunderstorms after 5pm. Sunny and hot, with a high near 93. Heat index values as high as 102. West southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 2am. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. East northeast wind 5 to 7 mph.
Sunday
Sunny, with a high near 82. East northeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 59. East wind around 6 mph.
Labor Day
Sunny, with a high near 82. East wind around 6 mph.
Monday Night
Partly cloudy, with a low around 62. East southeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 87. South wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny and hot, with a high near 91.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dayton IN
 40.37°N 86.77°W (Elev. 666 ft)
Last Update:
11:45 pm EDT Sep 3, 2026
Forecast Valid:
12am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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