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Chestnut Bayou, IN Weather Forecast
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Chestnut Bayou Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY |
 |  | | | | | |  |  | |  |  |
| Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 703 PM EDT Tue Sep 01 2026 
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Instant definitions for any meteorological term.
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Issued: 1000 PM EDT Tue Sep 1 2026
Key Messages
- Heat Advisory in effect for all of central Indiana through Thursday evening
- Increasingly hot and humid conditions through the middle of this week. Peak heat index values up to 105 are possible each afternoon Tuesday through Thursday.
- Isolated to scattered thunderstorms will be possible at times late this week through the weekend.
Discussion
(This evening through Tuesday)... Issued at 257 PM EDT Tue Sep 1 2026
Deep ridging over the central CONUS will be the predominant driver of our upco...