Weather in San Marcos, United States
Weather Advisories
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Tomorrow's weather summary
The weather in San Marcos on Wednesday, June 24th, will change throughout the day from foggy condition to clear.
According to our models fog will appear before dawn and there is a high chance for clear skies around noon.
Weather information for San Marcos, on Wednesday, June 24th:
The highest temperature of the day will be 75°F around 1 pm. The day will have very high relative humidity, with average humidity of 84%, ranging from 64% to a maximum value of 100% at about 6 am. The wind will be light, and will get up to 10 mph at 3 pm, blowing from the west. The cloud coverage will range from 12% around 2 pm to as high as 100% around 11 pm with an average of 61%.
There is no probability for any precipitation throughout the day. The dew point will range from 58°F up to a maximum value of 61°F around midnight.
The visibility is expected to be fair with average visibility of 6 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1015 hPa. Sunrise will be at 5:40 am, and sunset at 8:01 pm, making it a total of 14 hours and 21 minutes of daylight.
Air quality forecast for San Marcos, on Wednesday, June 24th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 53 and 60.
Pollen forecast for San Marcos, on Wednesday, June 24th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
The weather in San Marcos on Thursday, June 25th, will be clear throughout the day, with fog before dawn.
There's seems to be also high probability of cloud overcast during the morning at about 8 am.
Weather details for San Marcos, on Thursday, June 25th:
The highest temperature during the day is going to be 73°F around 2 pm. The day will have very high relative humidity, with average humidity of 79%, ranging from 56% to a maximum value of 99% at about 6 am. The wind will be light, and will get up to 8 mph at 1 pm, blowing from the west. The cloud coverage will range from 0% around 8 pm to as high as 100% around 8 am with an average of 46%.
There is no probability for any precipitation throughout the day. The dew point will range from 56°F up to a maximum value of 59°F around 1 am.
The visibility is expected to be good with average visibility of 7 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1013 hPa. Sunrise will be at 5:41 am, and sunset at 8:01 pm, making it a total of 14 hours and 20 minutes of daylight.
Air quality forecast for San Marcos, on Thursday, June 25th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 55 and 60.
Pollen forecast for San Marcos, on Thursday, June 25th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
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