Clark, Missouri Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Clark weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Mostly Clear10%—82°58°—
- FridayJun 5Thunderstorm32%0.12″85°68°+3°
- SaturdayJun 6Light Drizzle11%—84°68°-1°
- SundayJun 7Light Showers63%—83°67°-1°
- MondayJun 8Thunderstorm56%—88°67°+5°
- TuesdayJun 9Showers29%0.17″81°67°-7°
- WednesdayJun 10Thunderstorm13%—87°68°+6°
Ozone at AQI 49 now. AQI down 6 over the last 6 hours (steady decline since this morning). With UV 6.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 41 by mid-afternoon.
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 49 now. With UV 6.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 41 by mid-afternoon.
- Present
- AQI 49
- UV peak
- 6.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 41
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
- 4:37 AM
- Moonset
- 2:13 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Clark at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: April 12 (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 — Clark
SPC has placed Clark 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.