Union Star, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Union Star weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain59%0.18″82°68°—
- SundayJul 5Drizzle12%0.03″87°68°+5°
- MondayJul 6Overcast——86°66°-1°
- TuesdayJul 7Overcast——86°66°0°
- WednesdayJul 8Overcast——91°67°+5°
- ThursdayJul 9Overcast35%—85°74°-6°
- FridayJul 10Light Drizzle30%—85°67°0°
AQI 35 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 2 hours of recent rain — PM2.5 down to 10.4 µg/m³, PM10 to 13.9 µg/m³.
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 49. Overcast through the UV peak window (cloud cover ~91%) — afternoon ozone should stay flat.
- Present
- AQI 49
- UV peak
- 4.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 16
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 10.4 µg/m³, PM10 to 13.9 µg/m³.
- PM2.5/PM10
- 0.75
- Wind
- light
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:13 PM
- Moonset
- 10:25 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Union Star at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 64494
16-Day Forecast — Union Star
- Sat82°68°59%
- Sun87°68°12%
- Mon86°66°4%
- Tue86°66°1%
- Wed91°67°7%
- Thu85°74°35%
- Fri85°67°30%
- Sat80°62°9%
- Sun81°60°5%
- Mon82°59°7%
- Tue83°60°3%
- Wed87°58°12%
- Thu90°65°13%
- Fri89°74°10%
- Sat86°65°10%
- Sun81°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 — Union Star
SPC includes Union Star in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Union Star
- 64494