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Commerce, MO Weather Forecast
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| OVERNIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | SATURDAY | SUNDAY |
 |  | | | | | | | | |
| Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Sunny |
| Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM CDT Mon Sep 14 2026 
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Issued: 1252 AM CDT Mon Sep 14 2026
Key Messages
- A dangerous late season heat wave is forecast for the early to middle part of this week. Peak daily heat index values around 105 degrees are expected during the worst of the heat.
- A Heat Advisory is in effect today for parts of southeast Missouri and far west Kentucky.
- A Heat Advisory will be in effect Tuesday and Wednesday for the entire area.
- Slightly less humid conditions are forecast next weekend, along with the return of a small chance of showers on Sunday.
Discussion
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