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Horn Lookout Tower, AR Weather Forecast
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Horn Lookout Tower Weather Forecast
| REST OF TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  | | | | |  | |  | | |
| Sunny | Mostly Clear | Chance of T-Storm | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear |
| Hi: 101°FHi: 38°C | Lo: 80°FLo: 27°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C |
| POP: 20% | POP: 30% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1036 AM CDT Sun Aug 16 2026 
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Issued: 640 AM CDT Sun Aug 16 2026
Key Messages
Issued at 639 AM CDT Sun Aug 16 2026
- An Extreme Heat Warning remains in effect across the entire Mid- South through Sunday evening. Additional warnings and advisories will be needed into early next week.
- Overnight lows will remain unseasonably warm, preventing recovery and creating stress for at-risk populations.
- Heat headlines will likely be needed into next week as upper ridging remains over much of the area and hot and humid conditions continue.