Forecast and Conditions for McAllen, Texas

Updated: 5:53 PM CDT on July 06, 2009 Observed at McAllen, Texas
Temperature	101 °F
Humidity	36%
Dew Point	69 °F
Wind	SE at 25 mph
Pressure	29.71 in (Falling)
Conditions	Clear
Visibility	10.0 miles
Clouds	Clear (CLR) : -
Yesterday's Maximum	105 °F
Yesterday's Minimum	81 °F
Normal high	96 °F
Normal low	75 °F
Record high	106 °F (1998)
Record low	69 °F (1975)
Yesterday's Heating Degree Days	0
Yesterday's Cooling Degree Days	28
Sunrise	06:46 AM (CDT)
Sunset	08:29 PM (CDT)
Moon Rise	08:15 PM (CDT)
Moon Set	05:58 AM (CDT)
Moon Phase

Heat Advisory Statement as of 12:22 am CDT on July 6, 2009

... Heat advisory remains in effect until 7 PM CDT this evening...

A combination of high temperatures with high relative humidity
will produce widespread heat index values of 110 to 115 degrees
across the Rio Grande Valley this afternoon. Overnight low
temperatures will only lower to near 80.

Precautionary/preparedness actions...

Managers of personnel working outside this afternoon should be
aware of the need for plenty of breaks and ample water and rest
for workers.

Children... the elderly and people with chronic ailments are
usually the first to suffer from excessive heat. Cramps or in
extreme cases heat exhaustion and heat stroke can result from
prolonged exposure to these oppressive conditions. Please take
the responsibility of checking on people who may be at risk today
and Monday.

A heat advisory is issued when the heat index... a measure of how
it feels when temperature and humidity are combined... equals or
exceeds 111 for 2 hours or more during the day... and observed
nighttime temperatures remain 75 degrees or above.

Forecast as of 2:59 PM CDT on July 6, 2009
Heat advisory in effect until 7 PM CDT this evening...

	Tonight Mostly clear. Lows around 80. Southeast winds 10 to 15 mph. Heat index readings 105 to 109 in the evening.
	Tuesday Partly cloudy in the morning then becoming sunny. Highs around 104. South winds 10 to 15 mph. Heat index readings 105 to 113.
	Tuesday Night Mostly clear in the evening then becoming partly cloudy. Lows around 80. Light winds becoming southeast 10 to 15 mph in the late evening and early morning becoming light. Heat index readings 105 to 110 in the evening.
	Wednesday Partly cloudy. Highs around 103. Southeast winds 10 to 15 mph. Heat index readings 105 to 111 in the afternoon.
	Wednesday Night Partly cloudy in the evening then becoming clear. Lows in the upper 70s. Southeast winds 10 to 15 mph until early morning becoming light. Heat index readings 105 to 109 in the evening.
	Thursday and Thursday Night Mostly clear. Highs in the upper 90s. Lows in the mid 70s. Heat index readings 105 to 110.
	Friday Mostly cloudy. Chance of thunderstorms. Highs in the upper 90s. Chance of rain 40 percent. Heat index readings 105 to 107 in the afternoon.
	Friday Night Mostly cloudy. Lows in the mid 70s.
	Saturday Mostly cloudy. Slight chance of thunderstorms in the morning. Highs in the mid 90s. Chance of rain 20 percent. Heat index readings around 105 in the afternoon.
	Saturday Night Mostly cloudy in the evening then becoming cloudy. Lows in the mid 70s.
	Sunday Cloudy in the morning then becoming mostly cloudy. Slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.
	Sunday Night and Monday Partly cloudy. Lows in the upper 70s. Highs in the upper 80s.