Cambridge, Illinois Weather
Cicadas claim the afternoon. Day 13 of summer. Read this microseason across nine climate regions →
Cambridge weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 3Light Showers41%2.5″88°71°—
- SaturdayJul 4Drizzle33%0.03″89°71°+1°
- SundayJul 5Overcast29%—85°66°-4°
- MondayJul 6Light Drizzle——79°65°-6°
- TuesdayJul 7Overcast——81°62°+2°
- WednesdayJul 8Overcast17%—83°64°+2°
- ThursdayJul 9Light Showers31%0.37″80°67°-3°
AQI 40 (Good), driven by Ozone. AQI up 12 over the last 6 hours (gradual rise). Ozone at AQI 38 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
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 38 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 38
- UV peak
- 0.9 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 38
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
- 10:33 PM
- Moonset
- 8:59 AM
- In sign
- ♒︎ Aquarius
Cicadas claim the afternoon
Cambridge at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61238
16-Day Forecast — Cambridge
- Fri88°71°41%
- Sat89°71°33%
- Sun85°66°29%
- Mon79°65°8%
- Tue81°62°5%
- Wed83°64°17%
- Thu80°67°31%
- Fri80°67°26%
- Sat79°63°17%
- Sun80°66°12%
- Mon81°63°9%
- Tue79°64°29%
- Wed78°59°19%
- Thu86°64°16%
- Fri77°63°19%
- Sat73°59°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 3, 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 — Cambridge
SPC has placed Cambridge in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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 Cambridge
- 61238