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Arnold School, MO Weather Forecast
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Arnold School Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  | | | |  |  | | |  |  |  |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Sunny | Partly Cloudy |
| 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: 70°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C |
| POP: 50% | POP: 50% | POP: 70% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 237 AM CDT Thu Sep 17 2026 
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Issued: 243 AM CDT Thu Sep 17 2026
Key Messages
- A late season heat wave continues through at least Saturday with peak heat index values of 100-105F+ along/south of I-70.
- Scattered showers with an isolated sub-severe thunderstorm are possible (20-30%) across portions of the area this afternoon/evening.
Aviation
/00Z TAFS THROUGH 06Z FRIDAY/... Issued at 1108 PM CDT Wed Sep 16 2026
VFR flight conditions are expected to prevail through the period. Light and variable surface flow will turn to the west- southwest Thursday morning across m...