Weather in South Lyon, MI
Updated 2026-09-26 11:15 local time · ZIP codes 48178
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
60°11% rain
63°1% rain65°1% rain67°1% rain69°1% rain69°1% rain69°1% rain67°1% rain65°2% rain
60°2% rain58°3% rain
56°5% 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 11%).
It feels like 53°F with winds near 8 mph.
69°F, 1% rain chance and 8 mph wind.
Visibility is around 6 mi; gusts may reach 14 mph.
Current temperature is 60°F, wind 8 mph, rain chance up to 11%.
UV index is 3.
Local weather characteristics in South Lyon
Michigan weather is strongly influenced by the Great Lakes, which can moderate temperatures but also produce lake-effect clouds and heavy snow in favored areas.
South Lyon is part of the Midwest weather region. The forecast point is near 42.46°N latitude and 83.65°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.
South Lyon weather today
Overcast and 60°F in South Lyon, MI. Today's high is 69°F with a 4% rain chance. Winds are around 8 mph with gusts near 11 mph. Relative humidity is 52%, pressure is 30.23 inHg, and visibility is about 6 miles.
Tonight and tomorrow in South Lyon
Sunrise is at 07:26 AM and sunset is at 07:25 PM. Tomorrow's forecast calls for Sunny with a high near 71°F and a low near 50°F. The maximum rain chance is 4%.