Maryville, Illinois Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Maryville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——79°57°—
- TuesdayJun 16Overcast48%—83°61°+4°
- WednesdayJun 17Showers85%—92°60°+9°
- ThursdayJun 18Overcast85%—74°61°-18°
- FridayJun 19Clear10%—74°58°0°
- SaturdayJun 20Light Drizzle11%—79°59°+5°
- SundayJun 21Drizzle50%—80°64°+1°
AQI 32 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 7.8 µg/m³ (AQI 43) 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
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43) 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:39 AM
- Moonset
- 8:41 PM
- In sign
- ♊︎ Gemini
Sun climbs to its northern throne
Maryville at a glance
- Today vs. normal: 17°F below the seasonal normal for this latitude
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Maryville
- Mon79°57°0%
- Tue83°61°48%
- Wed92°60°85%
- Thu74°61°85%
- Fri74°58°10%
- Sat79°59°11%
- Sun80°64°50%
- Mon75°62°50%
- Tue76°63°20%
- Wed83°64°8%
- Thu89°70°12%
- Fri93°73°29%
- Sat96°75°23%
- Sun100°76°24%
- Mon98°75°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Maryville
SPC has placed Maryville in the Enhanced Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3ENHEnhanced Risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Maryville
- 62062