Weather in Lyon, MS
Updated 2026-09-26 09:00 local time · ZIP codes 38645
Partly Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
72°5% rain
77°11% rain80°10% rain83°9% rain86°9% rain88°9% rain89°3% rain
90°6% rain89°9% rain87°9% rain
82°9% rain79°10% 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 71°F with winds near 5 mph.
72°F, 5% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 15 mph.
Current temperature is 72°F, wind 5 mph, rain chance up to 11%.
UV index is 1.
Local weather characteristics in Lyon
Mississippi has a humid subtropical climate with long hot summers, mild winters, frequent heavy rain and a notable severe-weather season.
Lyon is part of the South weather region. The forecast point is near 34.22°N latitude and 90.54°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.
Lyon weather today
Partly Cloudy and 72°F in Lyon, MS. Today's high is 90°F with a 6% rain chance. Winds are around 5 mph with gusts near 6 mph. Relative humidity is 56%, pressure is 30.08 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Lyon
Sunrise is at 06:53 AM and sunset is at 06:53 PM. Tomorrow's forecast calls for Overcast with a high near 91°F and a low near 66°F. The maximum rain chance is 4%.