Lee's Summit, Missouri Weather
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Climate of Lee's Summit: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Lee's Summit, with average daytime highs around 32°C. January is the coolest, when nights typically fall to about -7°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 39°C, so the seasons feel very different from each other.
The area receives about 1040 mm of rain in a typical year. Most of it falls from April to August (around 60% of the yearly total), and May is the wettest month at roughly 141 mm.
For outdoor plans and travel, September to October usually offer the most comfortable weather in Lee's Summit, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 3° | -7° | 32 mm | 80% |
| Feb | 5° | -6° | 42 mm | 78% |
| Mar | 13° | 0° | 69 mm | 75% |
| Apr | 19° | 6° | 106 mm | 73% |
| May | 24° | 13° | 141 mm | 76% |
| Jun | 29° | 18° | 140 mm | 76% |
| Jul | 32° | 21° | 109 mm | 71% |
| Aug | 31° | 19° | 128 mm | 70% |
| Sep | 27° | 14° | 91 mm | 71% |
| Oct | 19° | 7° | 91 mm | 72% |
| Nov | 12° | 1° | 47 mm | 76% |
| Dec | 5° | -5° | 43 mm | 81% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Lee's Summit. Values describe typical conditions, not a forecast.
About Lee's Summit weather
Lee's Summit is set in Missouri's humid continental-to-subtropical climate, prone to severe spring storms, about 27 km south-east of Kansas City. Summers bring hot, humid summers (June–August). The year winds down with cold winters (December–February) with occasional ice storms. This page shows live, auto-refreshing weather for Lee's Summit: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Chicago.
Frequently asked questions
Lee's Summit is about 27 km south-east of Kansas City, in Missouri.
Lee's Summit sees cold winters (December–February) with occasional ice storms.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Lee's Summit's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Lee's Summit, with average daytime highs of about 32°C and nights around 21°C.
The coldest nights come in January, when the average low is about -7°C and daytime highs reach around 3°C. Frost is possible on clear, calm nights.
Lee's Summit receives about 1040 mm of rain in a typical year. May is the wettest month at roughly 141 mm, and the main rainy period is April to August.
September to October usually offer the most comfortable weather in Lee's Summit, with mild daytime temperatures and little rain.
In November Lee's Summit typically sees daytime highs near 12°C and lows near 1°C, with about 47 mm of rain over the month and average humidity around 76%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Lee's Summit is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Lee's Summit's day-to-day weather follows the broader pattern of Missouri described above. See the hourly weather forecast or the air quality index for more detail.