Osborn, Missouri Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Osborn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast37%—82°64°—
- FridayJun 5Thunderstorm62%—87°70°+5°
- SaturdayJun 6Thunderstorm17%—90°70°+3°
- SundayJun 7Light Showers75%0.01″79°64°-11°
- MondayJun 8Thunderstorm59%—84°65°+5°
- TuesdayJun 9Thunderstorm35%—89°72°+5°
- WednesdayJun 10Thunderstorm——89°73°0°
AQI 52 (Moderate), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.95 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
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. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 43
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.95 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:17 AM
- Moonset
- 3:25 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Osborn at a glance
- Today vs. normal: 73°F — typical for the season
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, 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 — Osborn
SPC has placed Osborn in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- 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.