Byrnes Mill, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Byrnes Mill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast28%—94°77°—
- SundayJul 5Overcast25%—83°74°-11°
- MondayJul 6Overcast10%—86°68°+3°
- TuesdayJul 7Clear——87°66°+1°
- WednesdayJul 8Mostly Clear12%—95°65°+8°
- ThursdayJul 9Overcast30%—98°75°+3°
- FridayJul 10Overcast40%—95°75°-3°
AQI 46 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 71 — peak already passed at 1 PM under partly cloudy skies. 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 71 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 71
- UV peak
- 4.8 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 71
PM × Wind × Precip
PM2.5 at 11.8 µg/m³, PM10 at 13.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:55 PM
- Moonset
- 10:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Byrnes Mill at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: April 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Byrnes Mill
- Sat94°77°28%
- Sun83°74°25%
- Mon86°68°10%
- Tue87°66°6%
- Wed95°65°12%
- Thu98°75°30%
- Fri95°75°40%
- Sat83°67°22%
- Sun81°62°7%
- Mon83°60°7%
- Tue81°62°10%
- Wed91°60°11%
- Thu93°64°19%
- Fri94°71°19%
- Sat81°67°23%
- Sun76°67°29%
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 — Byrnes Mill
SPC has placed Byrnes Mill 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 Byrnes Mill
- 63025
- 63051