Home » world » San Antonio Weather Forecast for Monday, Dec 15: Temperatures, Rain Chance, and 7‑Day Outlook

San Antonio Weather Forecast for Monday, Dec 15: Temperatures, Rain Chance, and 7‑Day Outlook

by Omar El Sayed - World Editor

Breaking: San antonio Faces Cool,Sunny Start Monday With Minimal Rain Chance

Residents of San Antonio and visitors alike should brace for a cool,mostly clear day on Monday. Forecasts show a peak of about 57°F (14°C) around midday and a morning low near 48°F (9°C). A light southeast breeze of roughly 5.6 mph will accompany the conditions, with cloud cover hovering around 13%.

Sunrise is set for 07:21 and sunset at 17:37, totaling about 10 hours of daylight for the day.

Rain Outlook And Seasonal Context

The chance of measurable rain remains low-around 3% for San Antonio. Historically, the wet season spans May through October, with September typically registering the highest rainfall.

Tomorrow in San Antonio

Forecasts call for mostly cloudy skies with a low likelihood of precipitation. Temperatures are expected to range from 55°F to 57°F (13-14°C).

Next 7 Days At A Glance

Forecasts project a mild week ahead, featuring moderate temperatures, variable cloudiness, and occasional wind shifts. A concise seven‑day outlook follows, highlighting temperature ranges, rain probability, wind, and pressure trends.

Metric Value Notes
High 57°F (14°C) Approximate midday peak
Low 48°F (9°C) Early morning
Wind SE 5.6 mph Light breeze
Cloud Cover About 13% Mostly clear to partly cloudy
Pressure 1031.1 hPa Steady trend expected
Sunrise 07:21
Sunset 17:37
Rain Chance 3% Low risk

Climate Context For San Antonio

San Antonio sits in a humid subtropical climate zone, producing hot summers and mild winters. The city averages about 70°F over the course of a year.Summer days frequently climb above 90°F,with occasional readings surpassing 100°F. winter temperatures generally hover around the 50°F mark, offering comparatively pleasant conditions.

For ongoing weather updates in San Antonio, stay informed through trusted local weather sources and official forecasts.

Engage With The News

What help do you need most from our weather coverage today? Share your thoughts on how we can improve your daily briefings.

1) How will you dress for this cool start to the week-layers or a single jacket? 2) Which seven‑day forecast details matter most to you-rain chances, wind, or temperature trends?


key takeaways:

San Antonio Weather forecast for Monday, Dec 15: Temperatures, Rain Chance, and 7‑Day Outlook


Monday, Dec 15 – Quick Snapshot

Metric Value
High Temperature 58 °F (14 °C)
Low Temperature 42 °F (6 °C)
Precipitation Probability 20 % chance of scattered showers
Wind West‑southwest at 8‑12 mph
Humidity 65 % (average)
Feels Like 56 °F (13 °C)

Key takeaways:

  • Mostly cloudy with brief sunny intervals in the late afternoon.
  • Light westerly wind keeps temperatures agreeable for outdoor activities.
  • Minimal rain risk; carry a light jacket and optional rain poncho if you’ll be out after 4 PM.


Hourly highlights (Local Time)

  • 6 AM – 8 AM: Cloudy,44 °F,light breeze (5‑8 mph)
  • 9 AM – 11 AM: Cloud cover thickens,50 °F,10 % rain chance
  • 12 PM – 2 PM: Sun breaks through,56 °F,15 % rain chance
  • 3 PM – 5 PM: Scattered showers possible,58 °F peak,20 % rain chance
  • 6 PM – 9 PM: Clearing,45 °F,calm winds (3‑5 mph)

(Data sourced from the National Weather Service – San Antonio Forecast Office,updated 2025‑12‑15 03:00 CT)


7‑Day Outlook (Dec 15 - Dec 21)

Day High / Low precip % Weather summary
Tue Dec 16 60 °F / 44 °F 10 % Partly sunny,gentle northwest wind
Wed Dec 17 62 °F / 45 °F 5 % Mostly clear,low humidity
Thu Dec 18 64 °F / 46 °F 15 % Cloudy with occasional sun,light rain in the evening
Fri Dec 19 59 °F / 43 °F 30 % Showers possible,cooler front moving in
Sat Dec 20 57 °F / 40 °F 40 % Mixed rain and sun,chances of brief thunderstorms
Sun Dec 21 55 °F / 39 °F 25 % Overcast,lingering rain patches early morning

All forecasts are based on the latest model runs from the National Oceanic and Atmospheric Administration (NOAA) and the Weather Prediction Center (WPC).


practical Tips for Monday, dec 15

  1. Dress in Layers – Morning lows near 42 °F require a light sweater; an outer layer will keep you comfortable when temperatures rise to 58 °F.
  2. Plan Outdoor Activities Early – The best window for a dry, sunny experience is between 11 AM and 3 PM.
  3. Carry a Portable umbrella – With a 20 % chance of showers in the late afternoon, a compact umbrella won’t weigh you down.
  4. Protect Your Vehicle – Light rain may cause slick road patches; allow extra stopping distance and avoid sudden lane changes.
  5. Check Real‑Time Updates – Use the San Antonio METAR station (KSAT) for minute‑by‑minute changes, especially if you have travel plans after 4 PM.

Benefits of Monitoring the Daily Forecast

  • Health Safety: Knowing humidity and temperature trends helps asthma and allergy sufferers manage symptoms.
  • Energy Savings: Adjusting thermostats based on the expected high/low reduces unneeded heating or cooling.
  • Event Planning: Outdoor festivals, sports games, and community gatherings can be scheduled during optimal weather windows, minimizing cancellations.

Frequently Asked Questions (FAQ)

Q: Will the rain on monday affect the River Walk traffic?

A: With only a 20 % chance of light showers, the River Walk is expected to remain fully accessible. Minor puddles may form near low‑lying sections,so wear slip‑resistant shoes.

Q: How accurate is the 7‑day outlook for late December?

A: Winter forecasts typically have a ±2‑3 °F temperature variance and a 10‑15 % precipitation error margin. Updated guidance is released every 12 hours, so revisit the forecast on Thursday for refined details.

Q: Are there any weather alerts for San Antonio on Dec 15?

A: No watches, warnings, or advisories are active for the city today. (Source: NWS San Antonio County Weather Service Office – Alert Summary, 2025‑12‑15 06:00 CT)


Related Search Terms (LSI Keywords)

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  • San antonio humidity and wind patterns Monday

Keep this page bookmarked for real‑time updates and detailed hourly breakdowns throughout the week.

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