Crystal City, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Crystal City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle39%0.04″94°75°—
- SundayJul 5Light Drizzle43%0.02″85°72°-9°
- MondayJul 6Overcast33%—88°70°+3°
- TuesdayJul 7Overcast——86°68°-2°
- WednesdayJul 8Overcast13%—94°67°+8°
- ThursdayJul 9Overcast23%—99°74°+5°
- FridayJul 10Heavy Drizzle39%0.01″91°74°-8°
AQI 46 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.9 µg/m³, PM10 at 13.8 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 47 now. With UV 6.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 27 around 1 PM.
- Present
- AQI 47
- UV peak
- 6.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 27
PM × Wind × Precip
PM2.5 at 12.9 µg/m³, PM10 at 13.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- Wind
- light
- Recent rain
- 1h 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
- 10:54 PM
- Moonset
- 10:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Crystal City at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 63019
16-Day Forecast — Crystal City
- Sat94°75°39%
- Sun85°72°43%
- Mon88°70°33%
- Tue86°68°7%
- Wed94°67°13%
- Thu99°74°23%
- Fri91°74°39%
- Sat92°74°21%
- Sun81°64°8%
- Mon81°59°6%
- Tue82°61°9%
- Wed86°64°10%
- Thu85°66°10%
- Fri82°68°9%
- Sat89°70°16%
- Sun91°72°14%
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 — Crystal City
SPC has placed Crystal City 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 Crystal City
- 63028
- 63019