Weather in Mackinaw, IL
Updated 2026-09-26 09:00 local time · ZIP codes 61755
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
56°18% rain60°15% rain63°14% rain64°13% rain65°12% rain66°12% rain67°11% rain
68°7% rain
68°6% rain68°7% rain
64°11% rain62°13% 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 18%).
It feels like 51°F with winds near 8 mph.
68°F, 6% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 13 mph.
Current temperature is 56°F, wind 8 mph, rain chance up to 18%.
UV index is 1.
Local weather characteristics in Mackinaw
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Mackinaw is part of the Midwest weather region. The forecast point is near 40.54°N latitude and 89.36°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.
Mackinaw weather today
Overcast and 56°F in Mackinaw, IL. Today's high is 68°F with a 11% rain chance. Winds are around 8 mph with gusts near 13 mph. Relative humidity is 70%, pressure is 30.19 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Mackinaw
Sunrise is at 06:49 AM and sunset is at 06:48 PM. Tomorrow's forecast calls for Overcast with a high near 72°F and a low near 58°F. The maximum rain chance is 8%.