Grayson, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Grayson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain60%0.09″85°69°—
- SundayJul 5Heavy Drizzle15%0.04″89°69°+4°
- MondayJul 6Thunderstorm——85°68°-4°
- TuesdayJul 7Light Drizzle——85°68°0°
- WednesdayJul 8Overcast——89°67°+4°
- ThursdayJul 9Drizzle32%—90°71°+1°
- FridayJul 10Drizzle31%—89°71°-1°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 3 hours of recent rain — PM2.5 down to 11.0 µg/m³, PM10 to 14.1 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 50. Overcast through the UV peak window (cloud cover ~95%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 8.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 27
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 11.0 µg/m³, PM10 to 14.1 µg/m³.
- PM2.5/PM10
- 0.78
- Wind
- light
- Recent rain
- 3h 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
- 11:12 PM
- Moonset
- 10:25 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Grayson at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Grayson
- Sat85°69°60%
- Sun89°69°15%
- Mon85°68°2%
- Tue85°68°1%
- Wed89°67°6%
- Thu90°71°32%
- Fri89°71°31%
- Sat90°72°11%
- Sun78°62°8%
- Mon80°58°5%
- Tue82°60°2%
- Wed82°64°12%
- Thu85°66°10%
- Fri83°66°10%
- Sat86°69°10%
- Sun88°70°11%
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 — Grayson
SPC has placed Grayson in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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.
ZIP codes in Grayson
- 64492