Weather in Mercedes, TX
Updated 2026-09-26 10:15 local time · ZIP codes 78570
Partly Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
86°10% rain
89°12% rain91°5% rain93°10% rain
95°9% rain
97°6% rain95°10% rain91°11% rain90°11% rain89°13% rain
86°15% rain85°16% 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 16%).
It feels like 93°F with winds near 7 mph.
86°F, 10% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 24 mph.
Current temperature is 86°F, wind 7 mph, rain chance up to 16%.
UV index is 3.
Local weather characteristics in Mercedes
Texas spans several climate zones, from humid Gulf Coast areas to dry western deserts and the High Plains. Heat, severe thunderstorms, tropical systems and winter cold outbreaks can all affect different parts of the state.
Mercedes is part of the South weather region. The forecast point is near 26.15°N latitude and 97.91°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.
Mercedes weather today
Partly Cloudy and 86°F in Mercedes, TX. Today's high is 97°F with a 14% rain chance. Winds are around 7 mph with gusts near 9 mph. Relative humidity is 67%, pressure is 29.98 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Mercedes
Sunrise is at 07:21 AM and sunset is at 07:24 PM. Tomorrow's forecast calls for Overcast with a high near 97°F and a low near 80°F. The maximum rain chance is 9%.