Princeville, Illinois Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Princeville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain76%0.23″84°67°—
- SundayJul 5Overcast23%—82°65°-2°
- MondayJul 6Clear——85°64°+3°
- TuesdayJul 7Overcast——81°60°-4°
- WednesdayJul 8Overcast——84°63°+3°
- ThursdayJul 9Thunderstorm44%0.27″82°68°-2°
- FridayJul 10Overcast42%—78°66°-4°
AQI 38 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 5.1 µg/m³ (AQI 28) with a 0.96 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 5.1 µg/m³ (AQI 28) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:18 PM
- Moonset
- 11:11 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Princeville at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61559
16-Day Forecast — Princeville
- Sat84°67°76%
- Sun82°65°23%
- Mon85°64°7%
- Tue81°60°2%
- Wed84°63°7%
- Thu82°68°44%
- Fri78°66°42%
- Sat75°59°11%
- Sun77°55°10%
- Mon77°56°6%
- Tue81°61°6%
- Wed82°67°19%
- Thu82°68°23%
- Fri86°70°26%
- Sat88°75°15%
- Sun84°67°16%
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 — Princeville
SPC has placed Princeville 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 Princeville
- 61559