Crystal Lakes, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Crystal Lakes weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle50%0.04″86°68°—
- SundayJul 5Light Drizzle15%0.02″93°68°+7°
- MondayJul 6Overcast11%—85°67°-8°
- TuesdayJul 7Clear——85°65°0°
- WednesdayJul 8Overcast——90°66°+5°
- ThursdayJul 9Overcast32%—87°74°-3°
- FridayJul 10Overcast32%—85°71°-2°
AQI 41 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 65. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 65. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 65
- UV peak
- 6.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 11.3 µg/m³, PM10 at 14.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.77
- Wind
- breezy
- 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
- 11:10 PM
- Moonset
- 10:24 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Crystal Lakes at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Crystal Lakes
- Sat86°68°50%
- Sun93°68°15%
- Mon85°67°11%
- Tue85°65°1%
- Wed90°66°6%
- Thu87°74°32%
- Fri85°71°32%
- Sat80°64°13%
- Sun81°60°9%
- Mon81°58°4%
- Tue80°60°3%
- Wed85°58°9%
- Thu86°64°10%
- Fri87°73°10%
- Sat88°68°6%
- Sun79°62°13%
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 Lakes
SPC has placed Crystal Lakes in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Lakes
- 64024