Arlington, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Arlington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain70%0.17″84°69°—
- SundayJul 5Overcast20%—82°66°-2°
- MondayJul 6Overcast——80°64°-2°
- TuesdayJul 7Overcast——80°58°0°
- WednesdayJul 8Overcast22%—81°63°+1°
- ThursdayJul 9Drizzle34%—78°65°-3°
- FridayJul 10Overcast34%—80°63°+2°
AQI 22 (Good), driven by PM2.5. AQI projected to climb to 38 over the next 6 hours. PM2.5 at 5.2 µg/m³, PM10 at 5.9 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 5.2 µg/m³, PM10 at 5.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- calm
- Recent rain
- 1h in last 6h
- Pattern
- background
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
- 10:54 PM
- Moonset
- 10:02 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Arlington at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61312
16-Day Forecast — Arlington
- Sat84°69°70%
- Sun82°66°20%
- Mon80°64°3%
- Tue80°58°4%
- Wed81°63°22%
- Thu78°65°34%
- Fri80°63°34%
- Sat81°64°15%
- Sun68°58°8%
- Mon73°56°10%
- Tue76°59°12%
- Wed78°62°32%
- Thu82°65°25%
- Fri81°68°32%
- Sat84°70°24%
- Sun84°71°29%
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 — Arlington
SPC has placed Arlington in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe 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.
ZIP codes in Arlington
- 61312