Weather in Karnes City, TX
Updated 2026-09-26 09:00 local time · ZIP codes 78118

Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
80°21% rain
83°16% rain
86°13% rain
89°11% rain
91°10% rain
93°10% rain
94°9% rain
95°5% rain
95°6% rain
94°9% rain
90°9% rain
85°11% 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 21%).
It feels like 83°F with winds near 6 mph.
85°F, 11% rain chance and 13 mph wind.
Visibility is around 6 mi; gusts may reach 20 mph.
Current temperature is 80°F, wind 6 mph, rain chance up to 21%.
UV index is 1.
Local weather characteristics in Karnes City
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.
Karnes City is part of the South weather region. The forecast point is near 28.88°N latitude and 97.90°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.
Karnes City weather today
Overcast and 80°F in Karnes City, TX. Today's high is 95°F with a 11% rain chance. Winds are around 6 mph with gusts near 8 mph. Relative humidity is 76%, pressure is 30.00 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Karnes City
Sunrise is at 07:22 AM and sunset is at 07:23 PM. Tomorrow's forecast calls for Overcast with a high near 95°F and a low near 76°F. The maximum rain chance is 12%.