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

Hazardous Weather Conditions

Current conditions at

Indianapolis International Airport (KIND)

Lat: 39.73°NLon: 86.28°WElev: 790ft.

Mostly Cloudy

74°F

23°C

Humidity 91%
Wind Speed SW 3 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Jul 9:54 pm EDT
Extended Forecast for

Castleton IN

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, cloudy early, then gradual clearing, with a low around 65. North wind 3 to 6 mph.

    Low: 65 °F

    Cloudy then
    Patchy Fog

  • Sunday

    Sunday: Areas of smoke. Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 84. Northeast wind 3 to 6 mph.

    High: 84 °F

    Patchy Fog
    then Areas
    Smoke

  • Sunday Night

    Sunday Night: Areas of smoke before 2am. Partly cloudy, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Areas Smoke

  • Monday

    Monday: Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 72. South southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Mostly Cloudy
    then Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 89. Southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 2am. Mostly clear, with a low around 64. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 78. North wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 18 mph.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, cloudy early, then gradual clearing, with a low around 65. North wind 3 to 6 mph.
Sunday
Areas of smoke. Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 84. Northeast wind 3 to 6 mph.
Sunday Night
Areas of smoke before 2am. Partly cloudy, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 87. Light and variable wind.
Monday Night
Showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 72. South southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 89. Southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 20 percent chance of showers before 2am. Mostly clear, with a low around 64. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 78. North wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 57. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 82.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castleton IN
 39.9°N 86.06°W (Elev. 823 ft)
Last Update:
10:45 pm EDT Jul 18, 2026
Forecast Valid:
10pm EDT Jul 18, 2026-6pm EDT Jul 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation