BREAKING: Laredo wakes to sticky air, bright sun, and a new factor at dawn. Warm and humid days are locked in. I am tracking a weekend risk for morning fog that could slow early travel and blur river crossings. Sunshine will rule by late morning, but the first hours of the day may be tricky.
Warm, humid air takes hold
Moist Gulf air has moved in and it is staying put. Afternoons are running warm for December, with highs near the upper 70s to low 80s. The air feels heavy, and the breeze is light. Nights are mild, with lows in the 60s. Skies stay mostly clear, which lets heat escape at night and sets the stage for fog. There are no severe storms in the short term. The story is heat, humidity, and visibility at sunrise.
Morning fog risk grows into the weekend
I expect patchy to areas of fog both weekend mornings. The highest risk window is near sunrise, from about 5 to 9 am. Light winds, clear skies, and high humidity are the key mix. Fog will form first in low spots and near the Rio Grande. Bridges, frontage roads, and rural stretches will see the thickest pockets. The I-35 corridor, Loop 20, and routes near river bottoms will need extra care.
Patches of dense fog are possible between 5 and 9 am Saturday and Sunday. Expect sudden drops in visibility.
Fog will lift fast once the sun heats the surface. Most locations should clear by mid to late morning. After that, it turns bright and warm again. Air quality may feel muggy but not hazardous. Still, those with asthma may notice the thick morning air.
How to move safely through fog and heat
If you are driving early, plan for a slower start. Give extra time and space. Use patience at ramps and river crossings. The risk is brief, but it is real.
- Use low beams, not high beams, and slow down.
- Leave extra distance and avoid sudden lane changes.
- Follow right edge lines to stay oriented.
- Do not stop in a lane, pull fully off if you must stop.
Use low beams in fog. High beams scatter light and make it harder to see.
Outdoor plans can go on, with timing and hydration in mind. Morning jogs are fine after fog lifts. Midday brings the strongest sun and the stickiest feel. Late afternoon offers a better balance.
- Drink water before you feel thirsty.
- Wear light, breathable clothing and a hat.
- Take breaks in shade every 20 to 30 minutes.
- Keep pets off hot pavement and carry water for them.
Best outdoor window is late afternoon after 4 pm, when fog is gone and sun is easing. Early morning works too once visibility improves.
The climate signal behind today’s pattern
This pattern fits a larger South Texas story. Nights are warming in our region as the climate heats up. Warmer nights mean the ground and air do not cool as much. Humidity stays higher, and dew points stray close to overnight lows. That raises the odds of muggy mornings and, on calm days, fog at dawn. It also stretches the warm season feel deeper into winter. Laredo residents are feeling that today. More heat, more moisture, and more stress on people and the grid.
A warming climate also nudges us to make smarter choices. Simple steps help. Close blinds in the afternoon to keep homes cooler. Use fans with your air conditioner to set a higher thermostat and save energy. Combine trips to cut idle time in traffic. Choose shade when you park to lower cabin heat and reduce AC load when you start moving again.
What I am watching next
I am watching for any shift in wind speeds that could cut the fog risk. A light breeze before dawn would mix the air and improve visibility. I am also tracking any weak fronts next week. A weak front would bring drier air, clearer mornings, and easier breathing. For now, expect two more days of sticky sun and early fog pockets.
Conclusion
Laredo is warm, bright, and humid today, with a weekend twist at dawn. Fog is set to form early, then fade fast under the sun. Travel early with care, hydrate through the day, and pick your outdoor window with purpose. This is a small forecast, but it fits a big story. Our nights are warming, our air holds more moisture, and smart choices matter more than ever. Keep your low beams ready and your water bottle filled. I will keep you ahead of the next change.
