Weather Forecast: What to Expect This Sunday in San Antonio, Texas
San Antonio residents can expect a mix of sun and clouds this Sunday, May 4th, with temperatures peaking near 85°F and a 30% chance of scattered afternoon showers. The National Weather Service (NWS) predicts moderate humidity levels, making it feel slightly warmer, while winds will remain light at 5-10 mph. Whether planning outdoor activities or staying indoors, here’s what you need to know to navigate the day’s conditions.
Detailed Temperature and Humidity Outlook
Morning temperatures will start in the mid-60s, rising steadily to a high of 85°F by early afternoon. “The humidity will hover around 65%, which is fairly typical for early May in San Antonio,” says meteorologist Laura Hernandez of the NWS. “It won’t be oppressive, but sensitive groups may want to stay hydrated.” Evening temperatures will drop to around 70°F, offering mild conditions for outdoor dining or strolls.
- Morning: 64-70°F, partly cloudy
- Afternoon: 80-85°F, isolated showers possible
- Evening: 68-72°F, clearing skies
Rain Potential and Storm Activity
While most of Sunday will remain dry, a weak cold front could trigger sporadic showers after 2 PM. The NWS estimates a 30% chance of rain, primarily in northern parts of the city. “These showers will likely be brief and light, with accumulations under 0.1 inches,” notes Hernandez. However, localized areas might experience slightly heavier downpours due to the urban heat island effect.
Residents planning events like the Fiesta San Antonio leftovers or park visits should monitor radar updates. “Outdoor activities are still feasible, but have a backup plan,” advises local event planner Marcus Rivera. “A pop-up shower can dampen setups quickly.”
Wind and Air Quality Conditions
Winds will stay gentle, blowing from the southeast at 5-10 mph, which may help disperse pollen and improve air quality. The Texas Commission on Environmental Quality (TCEQ) rates Sunday’s air quality as “moderate,” ideal for most people but potentially troublesome for those with respiratory issues. Pollen counts, however, remain high due to oak and cedar particles.
How to Prepare for Sunday’s Weather
With variable conditions expected, here are expert-recommended tips:
- For outdoor plans: Pack sunscreen (UV index of 8) and a lightweight rain jacket.
- For allergies: Consider antihistamines or indoor air filters.
- For hydration: Carry water, especially during peak heat hours (11 AM–3 PM).
Long-Term Outlook and Climate Trends
This Sunday’s weather aligns with San Antonio’s typical spring pattern, though May 2024 has been 2°F warmer than average, according to Climate Central data. “We’re seeing a trend toward hotter, drier springs, consistent with broader climate shifts,” explains Dr. Alan Ruiz, a climatologist at the University of Texas. “Residents should anticipate more volatility in coming years.”
Looking ahead, next week promises hotter temperatures, with highs nearing 90°F. The NWS will issue updates if severe weather risks emerge.
Final Thoughts and Call to Action
Sunday’s forecast offers a blend of warmth and mild rain chances—manageable for most but requiring slight adjustments for comfort. Stay updated via the NWS website or local news outlets for real-time changes. Whether you’re exploring the River Walk or relaxing at home, a little preparation will ensure you make the most of the day.
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