Missouri (Kansas City)
September
Weather in Missouri for September 2026
Your guide to Missouri weather in September - trends and predictions
In general, the average temperature in Missouri at the beginning of September is 31 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.4 °F by the end of September.
With an average of 3 rainy days, Missouri experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
35°/13°
Temperatures
19 km/h
Avg max wind
52 %
Avg humidity
Missouri Weather September
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What’s the Weather Like in Missouri This September?
Discover the average temperatures and weather trends across Missouri’s cities this September.
Temperatures trend during September in Missouri
See the weather trend as well as the moving average line
September weather in Missouri day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 31° /17° | 9.2 mm | 7 | |
| Sept. 2 |  Sunny | 31° /16° | 0 mm | 7 | |
| Sept. 3 |  Moderate or heavy rain shower | 32° /17° | 7.3 mm | 7 | |
| Sept. 4 | Moderate or heavy rain shower | 31° /18° | 7.3 mm | 7 | |
| Sept. 5 |  Overcast | 31° /18° | 0.9 mm | 7 | |
| Sept. 6 | Partly cloudy | 30° /16° | 0 mm | 7 | |
| Sept. 7 | Sunny | 31° /15° | 0 mm | 7 | |
| Sept. 8 | Sunny | 30° /15° | 2.3 mm | 7 | |
| Sept. 9 | Sunny | 31° /15° | 0 mm | 7 | |
| Sept. 10 |  Cloudy | 31° /16° | 3.2 mm | 7 | |
| Sept. 11 | Sunny | 31° /17° | 4.1 mm | 7 | |
| Sept. 12 | Partly cloudy | 33° /17° | 0 mm | 8 | |
| Sept. 13 | Sunny | 33° /17° | 0 mm | 8 | |
| Sept. 14 | Overcast | 33° /18° | 0.1 mm | 7 | |
| Sept. 15 | Overcast | 32° /17° | 0 mm | 7 | |
| Sept. 16 | Sunny | 31° /18° | 0.3 mm | 7 | |
| Sept. 17 | Moderate rain at times | 33° /18° | 1 mm | 8 | |
| Sept. 18 | Sunny | 32° /18° | 4.2 mm | 7 | |
| Sept. 19 | Sunny | 35° /20° | 0 mm | 8 | |
| Sept. 20 | Moderate or heavy rain shower | 31° /20° | 5.6 mm | 7 | |
| Sept. 21 |  Thundery outbreaks possible | 29° /17° | 2.5 mm | 7 | |
| Sept. 22 | Sunny | 26° /15° | 26.5 mm | 6 | |
| Sept. 23 | Moderate or heavy rain shower | 24° /14° | 14.4 mm | 6 | |
| Sept. 24 | Partly cloudy | 27° /15° | 5.4 mm | 6 | |
| Sept. 25 | Sunny | 28° /13° | 0 mm | 7 | |
| Sept. 26 | Sunny | 30° /14° | 0 mm | 7 | |
| Sept. 27 | Sunny | 31° /15° | 0.2 mm | 7 | |
| Sept. 28 | Sunny | 31° /14° | 0 mm | 7 | |
| Sept. 29 | Sunny | 30° /16° | 0.8 mm | 7 | |
| Sept. 30 | Sunny | 29° /16° | 1.3 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Missouri in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Missouri forecast closer to your planned date for the most up-to-date weather information.
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Missouri in September - FAQ
What are the expected maximum and minimum temperatures in Missouri during September?
Expect warm days with temperatures around 35°, cooling to mild conditions of 13° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Missouri during September?
Significant rainfall exceeding 392.5 mm is expected in Missouri during September, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Missouri during September?
The average wind speed in Missouri during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Missouri
Explore the daily rainfall trends and prepare for Missouris September weather 💧
UV exposure in Missouri during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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