Hillsdale, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Hillsdale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers37%0.12″84°68°—
- SundayJul 5Overcast17%—85°67°+1°
- MondayJul 6Overcast——81°63°-4°
- TuesdayJul 7Overcast——80°59°-1°
- WednesdayJul 8Overcast10%—82°62°+2°
- ThursdayJul 9Drizzle41%—81°68°-1°
- FridayJul 10Overcast21%—81°65°0°
AQI 23 (Good), driven by Ozone. Ozone at AQI 42. Overcast through the UV peak window (cloud cover ~62%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 42. Overcast through the UV peak window (cloud cover ~62%) — afternoon ozone should stay flat.
- Present
- AQI 42
- UV peak
- 4.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.75 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.75
- 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
- 10:57 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Hillsdale at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61257
16-Day Forecast — Hillsdale
- Sat84°68°37%
- Sun85°67°17%
- Mon81°63°3%
- Tue80°59°1%
- Wed82°62°10%
- Thu81°68°41%
- Fri81°65°21%
- Sat84°66°18%
- Sun69°59°9%
- Mon75°56°7%
- Tue75°60°7%
- Wed79°64°16%
- Thu81°66°16%
- Fri82°68°29%
- Sat86°70°19%
- Sun86°72°32%
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 — Hillsdale
SPC has placed Hillsdale 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 Hillsdale
- 61257