Jacksonville, AR Weather Forecast
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Jacksonville Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy |
| Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 100°FHi: 38°C | Lo: 71°FLo: 22°C | Hi: 100°FHi: 38°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: 91°FHi: 33°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C |
| POP: 20% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 AM CDT Thu Sep 17 2026 

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Issued: 623 AM CDT Thu Sep 17 2026
Key Messages
Issued at 204 AM CDT Thu Sep 17 2026- A Heat Advisory remains in effect for the Arkansas River Valley and the Mississippi River Delta Thursday
- Isolated showers & t`storms possible in west, & south Arkansas on Thursday
- Dry air begins to move into the region, below 30th percentile Min RHs possible over the weekend
Discussion
... Issued at 204 AM CDT Thu Sep 17 2026
The H500 ridge that has been dominating headlines for several weeks now will shift westward during the day Thurs with its peak...
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