Grayson, Missouri Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Grayson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——81°63°—
- ThursdayJun 4Showers34%0.16″84°65°+3°
- FridayJun 5Thunderstorm63%—85°69°+1°
- SaturdayJun 6Thunderstorm40%—86°69°+1°
- SundayJun 7Light Showers65%—80°69°-6°
- MondayJun 8Drizzle56%—81°68°+1°
- TuesdayJun 9Thunderstorm33%—90°73°+9°
Ozone at AQI 46. AQI up 23 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
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 46. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
- Present
- AQI 46
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- 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
- 4:46 AM
- Moonset
- 2:22 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Grayson at a glance
- Today vs. normal: 76°F — typical for the season
- Last frost: April 13 (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 — Grayson
SPC has placed Grayson 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.