Chain of Rocks, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chain of Rocks weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain15%0.06″92°76°—
- SundayJul 5Heavy Drizzle19%0.11″83°72°-9°
- MondayJul 6Light Drizzle19%—85°68°+2°
- TuesdayJul 7Clear——84°66°-1°
- WednesdayJul 8Overcast——92°66°+8°
- ThursdayJul 9Overcast31%—93°72°+1°
- FridayJul 10Drizzle41%0.01″90°73°-3°
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.4 µg/m³, PM10 at 12.5 µg/m³ — typical background levels with no transport signature.
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 40. Overcast through the UV peak window (cloud cover ~97%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 5.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 11.4 µg/m³, PM10 at 12.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:56 PM
- Moonset
- 10:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Chain of Rocks at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: April 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Chain of Rocks
- Sat92°76°15%
- Sun83°72°19%
- Mon85°68°19%
- Tue84°66°4%
- Wed92°66°5%
- Thu93°72°31%
- Fri90°73°41%
- Sat86°73°22%
- Sun78°61°6%
- Mon79°58°6%
- Tue81°61°10%
- Wed84°65°11%
- Thu84°66°14%
- Fri82°68°16%
- Sat86°70°14%
- Sun89°73°11%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Chain of Rocks
SPC has placed Chain of Rocks in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.
ZIP codes in Chain of Rocks
- 63369