Johnson County (Overland Park)
September
Weather in Johnson County, Kansas for September 2027
Your guide to Johnson County weather in September - trends and predictions
In general, the average temperature in Johnson County at the beginning of September is 32.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.6 °C by the end of September.
Johnson County experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 136.2 mm.
Is September a good time to visit Johnson County? check out the best time to travel to Johnson County page.
✨ Is September a good time to visit Johnson County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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21
Dry days
9
Rainy days
0
Snow days
30°/18°
Temperatures
18 km/h
Avg max wind
61 %
Avg humidity
Johnson County Weather September
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Temperatures trend during September in Johnson County
See the weather trend as well as the moving average line
September weather in Johnson County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain | 32° /19° | 8.6 mm | 8 | |
| Sept. 2 |  Sunny | 32° /18° | 0 mm | 8 | |
| Sept. 3 | Light rain | 34° /19° | 4.7 mm | 8 | |
| Sept. 4 | Sunny | 34° /20° | 0.4 mm | 8 | |
| Sept. 5 |  Patchy rain possible | 33° /19° | 1.2 mm | 6 | |
| Sept. 6 | Sunny | 31° /17° | 0.7 mm | 6 | |
| Sept. 7 | Light rain | 31° /16° | 5.3 mm | 8 | |
| Sept. 8 | Light rain | 31° /17° | 2.7 mm | 7 | |
| Sept. 9 |  Moderate rain | 29° /17° | 10.3 mm | 6 | |
| Sept. 10 | Patchy rain possible | 31° /18° | 1.2 mm | 6 | |
| Sept. 11 | Light rain | 30° /18° | 3.7 mm | 7 | |
| Sept. 12 | Patchy rain possible | 32° /19° | 1.2 mm | 7 | |
| Sept. 13 | Sunny | 30° /18° | 0.5 mm | 6 | |
| Sept. 14 |  Overcast | 32° /18° | 0 mm | 7 | |
| Sept. 15 | Patchy rain possible | 32° /19° | 1.9 mm | 7 | |
| Sept. 16 | Light rain | 31° /19° | 3.2 mm | 7 | |
| Sept. 17 | Sunny | 32° /20° | 0 mm | 7 | |
| Sept. 18 | Light rain | 31° /20° | 7.5 mm | 7 | |
| Sept. 19 |  Thundery outbreaks possible | 33° /20° | 1 mm | 6.9 | |
| Sept. 20 | Light rain | 26° /19° | 5.9 mm | 5 | |
| Sept. 21 | Thundery outbreaks possible | 27° /19° | 3.9 mm | 5 | |
| Sept. 22 | Thundery outbreaks possible | 26° /17° | 30.1 mm | 5 | |
| Sept. 23 |  Patchy light rain with thunder | 23° /16° | 22.9 mm | 6 | |
| Sept. 24 | Light rain | 24° /16° | 7.3 mm | 5 | |
| Sept. 25 | Light rain | 25° /14° | 4 mm | 5 | |
| Sept. 26 | Patchy rain possible | 28° /16° | 1.8 mm | 5 | |
| Sept. 27 | Patchy rain possible | 28° /16° | 0.5 mm | 6 | |
| Sept. 28 |  Partly cloudy | 29° /16° | 0 mm | 6 | |
| Sept. 29 | Light rain | 30° /18° | 2.5 mm | 6 | |
| Sept. 30 | Light rain | 30° /19° | 3.1 mm | 5.9 | |
| Next | |||||
Important Notice
Our weather forecast for Johnson County 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 Johnson County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Johnson County in September - FAQ
What are the expected maximum and minimum temperatures in Johnson County during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 18° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Johnson County during September?
Significant rainfall exceeding 136.2 mm is expected in Johnson County during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Johnson County during September?
The average wind speed in Johnson County during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Johnson County
Explore the daily rainfall trends and prepare for Johnson Countys September weather 💧
Typically, Johnson County has 9 rainy days in September with a total of 136.2 mm of rainfall.
UV exposure in Johnson County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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