Weather in Grant Park, IL
Updated 2026-09-26 11:00 local time · ZIP codes 60940
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
62°10% rain65°9% rain67°9% rain68°10% rain68°10% rain68°10% rain67°12% rain65°14% rain
62°14% rain60°13% rain58°13% rain
56°12% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 14%).
It feels like 56°F with winds near 7 mph.
68°F, 10% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 9 mph.
Current temperature is 62°F, wind 7 mph, rain chance up to 14%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Grant Park
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Grant Park is part of the Midwest weather region. The forecast point is near 41.24°N latitude and 87.65°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Grant Park weather today
Overcast and 62°F in Grant Park, IL. Today's high is 68°F with a 9% rain chance. Winds are around 7 mph with gusts near 9 mph. Relative humidity is 47%, pressure is 30.20 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Grant Park
Sunrise is at 06:42 AM and sunset is at 06:41 PM. Tomorrow's forecast calls for Overcast with a high near 70°F and a low near 53°F. The maximum rain chance is 13%.