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.

Partly Cloudy

70°F

21°C

Humidity 93%
Wind Speed NE 9 mph
Barometer 30.09 in (1018.1 mb)
Dewpoint 68°F (20°C)
Visibility 8.00 mi
Last update 12 Jul 5:54 am EDT
Extended Forecast for

Castleton IN

  • Today

    Today: Sunny, with a high near 85. Northeast wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 63. Northeast wind 5 to 7 mph.

    Low: 63 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 88. Northeast wind 5 to 9 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92. Light east northeast wind.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 72. Light and variable wind.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. West northwest wind 3 to 6 mph.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 92. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 92 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 85. Northeast wind 6 to 11 mph, with gusts as high as 22 mph.
Tonight
Clear, with a low around 63. Northeast wind 5 to 7 mph.
Monday
Sunny, with a high near 88. Northeast wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 92. Light east northeast wind.
Tuesday Night
Clear, with a low around 72. Light and variable wind.
Wednesday
Sunny and hot, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. West northwest wind 3 to 6 mph.
Thursday
Sunny and hot, with a high near 92. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 72. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 91.
Friday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castleton IN
 39.92°N 86.06°W (Elev. 801 ft)
Last Update:
6:47 am EDT Jul 12, 2026
Forecast Valid:
6am EDT Jul 12, 2026-6pm EDT Jul 18, 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