Saint Catharine, Missouri Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Saint Catharine weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Mostly Clear——78°56°—
- ThursdayJun 4Light Drizzle24%—84°59°+6°
- FridayJun 5Overcast58%—83°67°-1°
- SaturdayJun 6Thunderstorm34%—85°70°+2°
- SundayJun 7Showers62%0.17″82°68°-3°
- MondayJun 8Showers61%—80°67°-2°
- TuesdayJun 9Thunderstorm37%—90°72°+10°
Ozone at AQI 34 now. AQI down 13 over the last 6 hours (steady decline since this morning). With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 by mid-afternoon.
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 34 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 by mid-afternoon.
- Present
- AQI 34
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 6
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:41 AM
- Moonset
- 2:15 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Saint Catharine at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: April 15 (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 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 — Saint Catharine
SPC has placed Saint Catharine in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3MRGLMarginal 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.