Rock Falls, Illinois Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Rock Falls weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——76°52°—
- TuesdayJun 16Heavy Drizzle43%0.04″72°57°-4°
- WednesdayJun 17Showers94%0.21″77°54°+5°
- ThursdayJun 18Overcast65%—66°55°-11°
- FridayJun 19Light Drizzle——68°48°+2°
- SaturdayJun 20Drizzle17%0.20″71°56°+3°
- SundayJun 21Drizzle37%0.13″70°54°-1°
AQI 27 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.96 fine-to-coarse ratio and 3 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 6.7 µg/m³ (AQI 37) with a 0.96 fine-to-coarse ratio and 3 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:24 AM
- Moonset
- 8:54 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
Rock Falls at a glance
- Today vs. normal: 21°F below the seasonal normal for this latitude
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Rock Falls
- Mon76°52°2%
- Tue72°57°43%
- Wed77°54°94%
- Thu66°55°65%
- Fri68°48°3%
- Sat71°56°17%
- Sun70°54°37%
- Mon73°49°33%
- Tue75°56°6%
- Wed79°58°11%
- Thu85°68°14%
- Fri84°64°29%
- Sat88°72°24%
- Sun90°74°33%
- Mon80°73°39%
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 — Rock Falls
SPC has placed Rock Falls in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3SLGTSlight Risk
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 Rock Falls
- 61071