Fairfax, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Fairfax weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle74%0.10″84°69°—
- SundayJul 5Heavy Showers—0.75″90°68°+6°
- MondayJul 6Clear——86°67°-4°
- TuesdayJul 7Overcast——87°67°+1°
- WednesdayJul 8Overcast14%—95°67°+8°
- ThursdayJul 9Light Showers50%—87°72°-8°
- FridayJul 10Drizzle25%—84°67°-3°
AQI 34 (Good), driven by Ozone. AQI up 9 over the last 6 hours (gradual rise). Ozone at AQI 43 — peak already passed at 1 PM under overcast 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 43 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 43
- UV peak
- 3.7 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 43
PM × Wind × Precip
PM2.5 at 7.5 µg/m³, PM10 at 10.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.70
- 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
- 11:17 PM
- Moonset
- 10:28 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Fairfax at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 64446
16-Day Forecast — Fairfax
- Sat84°69°74%
- Sun90°68°9%
- Mon86°67°2%
- Tue87°67°1%
- Wed95°67°14%
- Thu87°72°50%
- Fri84°67°25%
- Sat79°62°8%
- Sun80°60°4%
- Mon81°61°6%
- Tue83°61°3%
- Wed87°59°8%
- Thu94°66°16%
- Fri96°77°23%
- Sat82°63°29%
- Sun79°60°16%
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 — Fairfax
SPC has placed Fairfax in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Fairfax
- 64446