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City of Barnett, MOBarnett, MO Weather Forecast
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Barnett Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | | |  |  | | |  | | |  |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Sunny | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of Showers |
| Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C |
| POP: 50% | POP: 50% | POP: 20% | POP: 30% | POP: 20% | POP: 50% | POP: 50% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 742 AM CDT Tue Sep 15 2026 
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Issued: 617 AM CDT Tue Sep 15 2026
Key Messages
- A Heat Advisory is in effect for the entire area today until 8 PM. Highs in the 90s with heat index values of 100-105 can be expected.
- Scattered thunderstorms will be possible across the area this afternoon into tonight, mainly north of I-44. There is a Marginal (1 of 5) Risk of severe weather for locations north of Highway 54 with the main risks being damaging winds, locally heavy rainfall, and lightning.
- Isolated afternoon/evening storms will be possible again on Wednesday (15-20%)...