Weather forecast for tomorrow
San Marcos, TX

Weather forecast for tomorrow

Wednesday, Jun 18.

Mostly Sunny
6:29 am

8:36 pm
CDT
Mostly Sunny
95°F / 75°F
  • Wind: 16mph S
  • Humidity: 64%
  • Precip. probability: 14%
  • Precipitation: 0"
  • UV index: 11
On Wednesday, in San Marcos, sunshine will prevail for most of the day.
The temperature variation is predicted to range from a maximum of a sizzling 95°F to a minimum of a moderately hot 75.2°F.
The maximum heat index, which combines relative humidity and air temperature, is calculated to be a life-threatening 116.6°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The day’s highest temperature is predicted to be moderately higher than the standard June average of 90.7°F.
Sunrise will be at 6:29 am and sunset at 8:36 pm; tomorrow's daylight will last for 14h and 7min.

Frequently asked questions

What is the weather forecast for San Marcos for tomorrow?
On Wednesday, dry and sunny weather is expected throughout the day.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 95°F, while the lowest temperature will be 75.2°F. The maximum heat index, which measures the combined effect of heat and moisture, is appraised at 116.6°F.
The highest temperature will be a couple of degrees higher than the average maximum of 90.7°F in June. The lowest temperature will be in line with the average low of 72°F.
What time are sunrise and sunset tomorrow?
On Wednesday, in San Marcos, sunrise will be at 6:29 am and sunset at 8:36 pm (CDT).
How long will the day be tomorrow in San Marcos?
Tomorrow, the daylight will last for 14h and 7min.

Hourly weather forecast

12 am
  • 79°F
  • Feels like:
    86°F
Clear
Clear
  • Wind: 12mph SSE
  • Pressure: 29.83"Hg
  • Humidity: 86%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 77°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph S
  • Pressure: 29.83"Hg
  • Humidity: 90%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 75°F
  • Feels like:
    81°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph S
  • Pressure: 29.8"Hg
  • Humidity: 95%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
6 am
  • 75°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph S
  • Pressure: 29.83"Hg
  • Humidity: 95%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 8mi
Sunrise: 6:29 am
8 am
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph S
  • Pressure: 29.85"Hg
  • Humidity: 90%
  • Precip. probability: 14%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 82°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 15mph S
  • Pressure: 29.85"Hg
  • Humidity: 75%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 88°F
  • Feels like:
    97°F
Partly Cloudy
Partly Cloudy
  • Wind: 15mph S
  • Pressure: 29.88"Hg
  • Humidity: 61%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 93°F
  • Feels like:
    100°F
Mostly Sunny
Mostly Sunny
  • Wind: 14mph S
  • Pressure: 29.88"Hg
  • Humidity: 50%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 93°F
  • Feels like:
    100°F
Sunny
Sunny
  • Wind: 16mph SSE
  • Pressure: 29.83"Hg
  • Humidity: 49%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 91°F
  • Feels like:
    99°F
Sunny
Sunny
  • Wind: 16mph SSE
  • Pressure: 29.83"Hg
  • Humidity: 51%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 88°F
  • Feels like:
    95°F
Sunny
Sunny
  • Wind: 14mph SSE
  • Pressure: 29.85"Hg
  • Humidity: 61%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:36 pm
10 pm
  • 82°F
  • Feels like:
    90°F
Clear
Clear
  • Wind: 10mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 79%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, a combination of bright and dull weather is expected.
The temperature will be between a minimum of 75.2°F and a maximum of 93.2°F. The feels-like temperature will vary between the lowest temperature of 80.6°F and the highest temperature of 102.2°F. The hottest part of the day will be from 2 pm to 4 pm.
The forecasted high will be a few degrees higher than the typical June maximum of 90.7°F. The lowest temperature is also close to June's typical minimum of 72°F.
Updated: Jun 17, 2025 @ 08:16:33 UTC
Published by: Weather U.S. | About Us
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