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

Indianapolis International Airport (KIND)

Lat: 39.73°NLon: 86.28°WElev: 790ft.

Light Drizzle Fog/Mist

64°F

18°C

Humidity 93%
Wind Speed N 9 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 62°F (17°C)
Visibility 2.50 mi
Last update 22 Jun 11:54 am EDT
Extended Forecast for

Castleton IN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 70. North wind around 11 mph, with gusts as high as 21 mph.

    High: 70 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. North wind 3 to 7 mph.

    Low: 57 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 78. North wind 3 to 6 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. North wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 63. South wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. South southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 70. North wind around 11 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. North wind 3 to 7 mph.
Tuesday
Sunny, with a high near 78. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 57. North wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 63. South wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. South southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. East southeast wind 3 to 5 mph. Chance of precipitation is 70%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castleton IN
 39.9°N 86.06°W (Elev. 823 ft)
Last Update:
12:20 pm EDT Jun 22, 2026
Forecast Valid:
12pm EDT Jun 22, 2026-6pm EDT Jun 28, 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