Glen Allen, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Glen Allen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain27%0.16″93°72°—
- SundayJul 5Heavy Rain46%0.77″88°71°-5°
- MondayJul 6Overcast35%—87°70°-1°
- TuesdayJul 7Overcast18%—86°64°-1°
- WednesdayJul 8Mostly Clear11%—92°65°+6°
- ThursdayJul 9Overcast22%—95°70°+3°
- FridayJul 10Overcast38%—99°80°+4°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.1 µg/m³ (AQI 51) with a 0.89 fine-to-coarse ratio and 6 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 45. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
- Present
- AQI 45
- UV peak
- 8.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 9.1 µg/m³ (AQI 51) with a 0.89 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:51 PM
- Moonset
- 10:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Glen Allen at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: March 31 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Glen Allen
- Sat93°72°27%
- Sun88°71°46%
- Mon87°70°35%
- Tue86°64°18%
- Wed92°65°11%
- Thu95°70°22%
- Fri99°80°38%
- Sat91°69°20%
- Sun83°63°12%
- Mon84°59°7%
- Tue84°61°10%
- Wed88°61°11%
- Thu88°65°14%
- Fri91°68°17%
- Sat81°67°20%
- Sun84°66°17%
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 — Glen Allen
SPC has placed Glen Allen in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Glen Allen
- 63751