Lee's Summit, Missouri Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Lee's Summit weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast14%—82°65°—
- FridayJun 5Thunderstorm59%0.28″89°70°+7°
- SaturdayJun 6Overcast12%—84°68°-5°
- SundayJun 7Showers69%0.12″78°66°-6°
- MondayJun 8Thunderstorm59%—88°67°+10°
- TuesdayJun 9Thunderstorm38%—89°74°+1°
- WednesdayJun 10Thunderstorm——88°72°-1°
Ozone at AQI 58 — peak already passed at 1 PM under partly cloudy skies. AQI up 17 in the last 6 hours — air quality is degrading. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 58 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 58
- UV peak
- 4.2 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 58
PM × Wind × Precip
PM2.5 at 11.6 µg/m³, PM10 at 13.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:44 AM
- Moonset
- 2:23 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Lee's Summit at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Lee's Summit
SPC has placed Lee's Summit in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Lee's Summit's warmest month is July with a mean near 81°F, and its coldest is January with a mean near 31°F. Rainfall peaks in June at 5.3 inches, then falls to a low of 1.0 inches in January.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 1.0″ | 2 |
| February | 36° | 1.5″ | 3 |
| March | 46° | 2.1″ | 5 |
| April | 57° | 3.9″ | 7 |
| May | 67° | 5.1″ | 8 |
| June | 77° | 5.3″ | 8 |
| July | 81° | 4.4″ | 6 |
| August | 79° | 4.7″ | 6 |
| September | 71° | 3.8″ | 6 |
| October | 58° | 3.2″ | 5 |
| November | 45° | 1.8″ | 3 |
| December | 35° | 1.3″ | 3 |
Regional context
Lee's Summit belongs to a humid subtropical climate region — a cohort sharing comparable temperature ranges, seasonal patterns, and growing conditions with nearby cities.
Similar climates: St. Louis, MO, Kansas City, MO, Springfield, MO, Columbia, MO, Independence, MO.
Naturalist notes
By mid-May, common milkweed is rising in unmown margins around Lee's Summit, and its developing flower buds signal the approaching return of monarch butterflies from their spring migration northward.
In the last week of May, fireflies typically begin their nightly light displays in low, humid areas, their flashes peaking just after sunset when temperatures stay above roughly 60°F.
Frequently asked
- When does it freeze in Lee's Summit?
- Lee's Summit's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Lee's Summit?
- June is the wettest month with about 5.3 inches of rain on average; the city receives roughly 38 inches annually.
- What is the warmest month in Lee's Summit?
- July is typically warmest, averaging about 81°F.
- What is the coldest month in Lee's Summit?
- January is typically coldest, averaging about 31°F.
- When can I start a vegetable garden in Lee's Summit?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Lee's Summit get?
- Lee's Summit averages about 60 rainy days per year.
- What hardiness zone is Lee's Summit?
- Lee's Summit's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Lee's Summit, Missouri lies within a humid subtropical climate zone. January nights average 31°F while July days average 81°F, yielding a 50°F seasonal swing.
Over the course of a year, Lee's Summit collects about 38 inches of precipitation spread across roughly 60 rainy days.
Latitude (38.9°N), distance from large water bodies, and elevation set the rhythm of the year. These factors determine what grows here, when frost is likely, and the day-to-day weather story.