Streator, Illinois Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Streator weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——75°53°—
- TuesdayJun 16Drizzle35%0.03″74°56°-1°
- WednesdayJun 17T-storm w/ Hvy Hail93%0.88″79°54°+5°
- ThursdayJun 18Overcast75%—66°54°-13°
- FridayJun 19Overcast——68°51°+2°
- SaturdayJun 20Light Drizzle14%0.05″71°55°+3°
- SundayJun 21Drizzle40%0.09″66°54°-5°
AQI 30 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.94 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 8.5 µg/m³ (AQI 47) with a 0.94 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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
- 5:23 AM
- Moonset
- 8:47 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
Streator at a glance
- Today vs. normal: 20°F below the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Streator
- Mon76°53°1%
- Tue74°56°35%
- Wed79°54°93%
- Thu66°54°75%
- Fri68°51°2%
- Sat71°55°14%
- Sun66°54°40%
- Mon73°50°40%
- Tue74°58°16%
- Wed79°57°11%
- Thu85°69°14%
- Fri83°65°35%
- Sat89°71°29%
- Sun90°75°37%
- Mon85°72°35%
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 — Streator
SPC has placed Streator in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- 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 Streator
- 61364