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San Marcos Current Conditions

Mostly Cloudy

San Marcos, TX: 63°

Mostly Cloudy
Wind: 18 mph / 30 km/h from the NW
Dew Point: 25 °F / -4 °C
Pressure: 30.20 in / 1023 hPa
Humidity: 24%
Visibility: 10.0 miles / 16.1 kilometers
Updated: 12:15 PM CST on December 01, 2008
Observed at: San Marcos, Texas(KHYI)

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5-Day Forecast for ZIP Code 78666

Monday
Partly Cloudy
Partly Cloudy
Tuesday
Partly Cloudy
Partly Cloudy
Wednesday
Partly Cloudy
Partly Cloudy
Thursday
Clear
Clear
Friday
Partly Cloudy
Partly Cloudy
67° | 32°

Detail 		74° | 54°

Detail 		76° | 43°

Detail 		58° | 36°

Detail 		58° | 41°

Detail

San Marcos Personal Weather Network

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Air Quality Austin

 
Air Quality
AQ Index
Pollutant
Yesterday: Good OZONE
Yesterday: Good PM2.5
   
Current: Good OZONE
Current: Good PM2.5
   
Monday: Good OZONE
Monday: Good PM10
Tuesday: Good OZONE
Tuesday: Good PM10
Wednesday: Good OZONE
Wednesday: Good PM10
Thursday: Good OZONE
Thursday: Good PM10
Information About Air Pollution

UV Index

4
 Mon 
5
 Tue 
3
 Wed 
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Weather History

December of 1831 was the coldest month on record for the the Northeast. New York City averaged just 22 degrees the entire month as only for days had a high temperature above freezing. Even colder was Burlington, VT which never did get above freezing the entire month.

San Marcos Almanac

December 1, 2008
Normal high:66° Record high:83° (1954)
Normal low:46° Record low:24° (1979)
Sunrise:7:10 AM Moon Rise: 10:25 AM
Sunset:5:31 PM Moon Set: 8:55 PM
Complete weather almanac

Statement as of 5:04 am CST on December 1, 2008

Fire Weather Warning


... Red flag warning in effect from noon today to 6 PM CST this
afternoon...

The National Weather Service in Austin/San Antonio has issued a
red flag warning... which is in effect from noon today to 6 PM CST
this afternoon.

Wind speeds of 15 to 25 mph are expected to accompany very low
dew point temperatures in the upper teens and 20s... resulting in
several hours of relative humidity values in the middle teens and
lower 20s during the warmest part of the day. Diminishing winds
and rising humidities should occur by 6 PM... but dry air is
expected to remain in place through at least early Tuesday.

A red flag warning means weather conditions will promote fires
that are difficult to control across the warned area. A red flag
warning is completely separate from a local burn ban which is
issued by local officials.
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