Hillsdale, Illinois Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Hillsdale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——86°55°—
- FridayJun 5Heavy Rain47%3.3″78°68°-8°
- SaturdayJun 6Light Showers53%—86°68°+8°
- SundayJun 7Showers33%0.01″84°70°-2°
- MondayJun 8Showers68%0.05″85°70°+1°
- TuesdayJun 9Light Drizzle38%0.01″86°71°+1°
- WednesdayJun 10Overcast21%—82°70°-4°
Ozone at AQI 71 now. AQI flat over the last 6 hours (within ±3 points). With UV 8.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 56 by mid-afternoon.
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 71 now. With UV 8.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 56 by mid-afternoon.
- Present
- AQI 71
- UV peak
- 8.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 56
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
- 4:35 AM
- Moonset
- 1:58 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Hillsdale at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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.