Marquette Heights, Illinois Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Marquette Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——85°68°—
- MondayJul 6Overcast——85°67°0°
- TuesdayJul 7Overcast——82°63°-3°
- WednesdayJul 8Overcast——84°65°+2°
- ThursdayJul 9Heavy Showers46%0.72″84°67°0°
- FridayJul 10Thunderstorm46%0.01″83°70°-1°
- SaturdayJul 11Light Drizzle21%—83°69°0°
AQI 26 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.92 fine-to-coarse ratio and 5 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 during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 36 now. With UV 5.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 19 around 1 PM.
- Present
- AQI 36
- UV peak
- 5.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 19
PM × Wind × Precip
PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.92 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 11:17 PM
- Moonset
- 11:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Marquette Heights at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Marquette Heights
- Sun85°68°7%
- Mon85°67°3%
- Tue82°63°1%
- Wed84°65°4%
- Thu84°67°46%
- Fri83°70°46%
- Sat83°69°21%
- Sun86°69°12%
- Mon89°69°5%
- Tue89°75°3%
- Wed77°62°6%
- Thu77°55°32%
- Fri81°62°22%
- Sat85°67°30%
- Sun88°73°29%
- Mon90°72°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Marquette Heights
SPC includes Marquette Heights in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Marquette Heights
- 61554