Weather in Grandfalls, TX
Updated 2026-09-26 09:00 local time · ZIP codes 79742
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
70°4% rain73°3% rain76°2% rain79°1% rain81°1% rain83°1% rain84°1% rain86°1% rain86°0% rain86°0% rain86°0% rain
80°1% 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 4%).
It feels like 65°F with winds near 11 mph.
70°F, 4% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 14 mph.
Current temperature is 70°F, wind 11 mph, rain chance up to 4%.
UV index is 0.
Local weather characteristics in Grandfalls
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.
Grandfalls is part of the South weather region. The forecast point is near 31.34°N latitude and 102.85°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.
Grandfalls weather today
Sunny and 70°F in Grandfalls, TX. Today's high is 86°F with a 36% rain chance. Winds are around 11 mph with gusts near 14 mph. Relative humidity is 62%, pressure is 29.93 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Grandfalls
Sunrise is at 07:42 AM and sunset is at 07:43 PM. Tomorrow's forecast calls for Overcast with a high near 88°F and a low near 71°F. The maximum rain chance is 10%.