Galveston, Texas Weather Conditions

Severe Weather Alerts

National Weather Service:

Heat Advisory View All Alerts

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 85°
  • Clear
  • Wind: South 14 mph
  • Humidity: 80%
  • Visibility: 10.0 miles
  • Dew Point: 78°
  • Pressure: 30.06 in. +
  • Heat Index: 97

Select a Section

Click a section below for more information.

Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Thunderstorm
T-storms
Thunderstorm
T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
84°
88°
91°
91°
88°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Thunderstorm
  • High: 91 °
  • Low: 82 °
  • Thunderstorm
  • Friday
  • Partly Cloudy
  • High: 93 °
  • Low: 79 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 91 °
  • Low: 81 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 91 °
  • Low: 79 °
  • Partly Cloudy
  • Monday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 81 °
  • Chance of T-Storms

Forecast for Galveston, Texas

Updated: 4:00 AM CDT on August 21, 2014

Heat advisory in effect until 7 PM CDT this evening...
  • Thursday

    Partly cloudy with thunderstorms and rain showers. High of 91F with a heat index of 104F. Winds from the South at 10 to 15 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 82F with a heat index of 97F. Winds from the South at 10 to 15 mph.

  • Friday

    Partly cloudy in the morning, then overcast. High of 93F with a heat index of 102F. Winds from the SSE at 5 to 10 mph.

  • Friday Night

    Clear. Low of 79F. Winds from the South at 10 to 15 mph.

  • Saturday

    Clear in the morning, then overcast. High of 91F with a heat index of 99F. Winds from the SSE at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 81F with a heat index of 95F. Winds from the SSE at 5 to 15 mph.

  • Sunday

    Partly cloudy. High of 91F with a heat index of 99F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Partly cloudy in the evening, then clear. Low of 79F. Winds from the South at 5 to 15 mph.

  • Monday

    Partly cloudy with a chance of a thunderstorm and rain. High of 91F with a heat index of 99F. Winds from the NW at 5 to 10 mph shifting to the ESE in the afternoon. Chance of rain 40%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Low of 81F with a heat index of 95F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 91F with a heat index of 104F. Winds from the NW at 5 to 10 mph shifting to the East in the afternoon. Chance of rain 50%.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 82F with a heat index of 97F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 93F with a heat index of 104F. Winds from the ENE at 5 to 10 mph. Chance of rain 50%.

  • Wednesday Night

    Clear. Low of 81F with a heat index of 95F. Winds less than 5 mph.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 93F. Winds from the NNW at 5 to 10 mph shifting to the ENE in the afternoon. Chance of rain 40%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm. Low of 81F. Winds from the SE at 5 to 10 mph shifting to the ENE after midnight. Chance of rain 40%.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 93F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Clear with a chance of a thunderstorm. Low of 79F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Clear with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Clear. Low of 81F. Winds from the South at 5 to 10 mph.

  • Sunday

    Clear. High of 91F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 81F. Winds from the South at 5 to 10 mph.

Severe Weather Alert Descriptions

 Heat Advisory  Statement as of 3:53 am CDT on August 21, 2014


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

* event... heat index readings of 105 to 110.

* Timing... by 10 am readings should exceed 103 and peak between
noon and 5 PM then fall slowly during the early evening.

* Impact... overheating and dehydration can quickly occur if you
will be outdoors today. It can be difficult to recognize the
signs of heat exhaustion on yourself... so plan to take
frequent breaks. You may recognize the signs of heat
exhaustion more readily in others.

Precautionary/preparedness actions...

Know the signs and symptoms of heat exhaustion... heavy sweating...
fatigue... confusion... headache... pale and clammy skin... thirst...
dizziness... nausea and vomiting... rapid heartbeat... cramps or
weakness.

Take extra precautions if you work or spend time outside. When
possible... reschedule strenuous activities to early morning or
evening. Wear light weight and loose fitting clothing when
possible and drink plenty of water. Be sure to drink plenty of
water hours before strenuous activity and then during.

To reduce risk during outdoor work... the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency - call 911.

Each year... a number of fatalities occur nationwide due to
children accidentally being left in vehicles during the Summer
months. In the past dozen years... 500 children have died due to
hyperthermia after being left in or gaining access to cars. Never
leave children or pets unattended in a vehicle not even for a
minute. Remember... beat the heat... check the backseat.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Peaceful Valley, Galveston, TX

Updated: 6:52 AM CDT

Temperature: 84.9 °F Dew Point: 80 °F Humidity: 84% Wind: SSW at 14.0 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 98 °F Graphs

Location: Tiki Island ( Buoy 46), Tiki Island, TX

Updated: 7:07 AM CDT

Temperature: 84.7 °F Dew Point: 78 °F Humidity: 81% Wind: SSW at 8.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: H2O House, Tiki Island, TX

Updated: 6:59 AM CDT

Temperature: 85.2 °F Dew Point: 80 °F Humidity: 85% Wind: SE at 14.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: Texas City, TX

Updated: 6:59 AM CDT

Temperature: 84.8 °F Dew Point: 80 °F Humidity: 84% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Pirates Beach Galveston, Galveston, TX

Updated: 7:06 AM CDT

Temperature: 86.4 °F Dew Point: 81 °F Humidity: 84% Wind: South at 14.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Pirate's Cove, Galveston, TX

Updated: 6:56 AM CDT

Temperature: 84.4 °F Dew Point: 80 °F Humidity: 85% Wind: SSE at 11.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Palm Beach, Galveston, TX

Updated: 6:57 AM CDT

Temperature: 84.6 °F Dew Point: 77 °F Humidity: 78% Wind: SSE at 4.7 mph Pressure: 30.00 in Hourly Precipitation: - Heat Index: 95 °F Graphs

Location: Crystal Beach Fire Rescue, Galveston, TX

Updated: 7:05 AM CDT

Temperature: 85.1 °F Dew Point: 78 °F Humidity: 79% Wind: SE at 7.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: San Leon, San Leon, TX

Updated: 7:07 AM CDT

Temperature: 83.0 °F Dew Point: 78 °F Humidity: 84% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Lafitte's Landing-Crystal Beach, Bolivar Peninsula, TX

Updated: 7:07 AM CDT

Temperature: 85.3 °F Dew Point: 79 °F Humidity: 82% Wind: South at 10.7 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Whispering Lakes Ranch, League City, TX

Updated: 7:07 AM CDT

Temperature: 82.9 °F Dew Point: 80 °F Humidity: 91% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Milan Circle, Santa Fe, TX

Updated: 7:07 AM CDT

Temperature: 82.5 °F Dew Point: 78 °F Humidity: 86% Wind: Calm Pressure: 18.08 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: K5ZXZ Santa Fe, TX

Updated: 7:06 AM CDT

Temperature: 82.2 °F Dew Point: 78 °F Humidity: 86% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 7:07 AM CDT

Temperature: 82.9 °F Dew Point: 78 °F Humidity: 85% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Santa Fe, TX

Updated: 7:06 AM CDT

Temperature: 82.1 °F Dew Point: 73 °F Humidity: 74% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 7:00 AM CDT

Temperature: 81.5 °F Dew Point: 80 °F Humidity: 94% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Satsuma Warehouse, Dickinson, TX

Updated: 7:00 AM CDT

Temperature: 81.9 °F Dew Point: 80 °F Humidity: 94% Wind: ESE at 3.2 mph Pressure: 29.76 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: Harbor Park, League City, TX

Updated: 7:04 AM CDT

Temperature: 81.9 °F Dew Point: 80 °F Humidity: 93% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: The Brewery @ Harbour Park, League City, TX

Updated: 7:03 AM CDT

Temperature: 81.0 °F Dew Point: 79 °F Humidity: 94% Wind: Calm Pressure: 29.76 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Bay Colony West, Dickinson, TX

Updated: 6:56 AM CDT

Temperature: 81.7 °F Dew Point: 78 °F Humidity: 90% Wind: Calm Pressure: 29.77 in Hourly Precipitation: - Heat Index: 91 °F Graphs

Location: Castle Under the Oaks, League City, TX

Updated: 7:05 AM CDT

Temperature: 82.9 °F Dew Point: 79 °F Humidity: 88% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Sami and Ally's Backyard, League City, TX

Updated: 6:59 AM CDT

Temperature: 80.9 °F Dew Point: 78 °F Humidity: 91% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Houston/Galveston Texas 
612 am CDT Thursday Aug 21 2014 


Discussion... 
see 12z aviation discussion. 


&& 


Aviation... 
no significant changes to previous taf package. Forecast soundings 
indicate drier conds with precipitable water values dropping to 1.5-1.7 inches. 
Rap/hrrr keep most of the precipitation to the east today as well. MVFR 
ceilings will be possible early this morning with ceilings mixing out 
between 14-16z. Should get some MVFR ceilings again over the northwest taf 
sites again tomorrow morning. 43 


&& 


Previous discussion... /issued 347 am CDT Thursday Aug 21 2014/ 


Discussion... 
some observations are now indicating low clouds starting to form 
tonight. These will quickly burn off this afternoon allowing for 
another hot and muggy day. Chance of rain today will be far less 
than yesterday. At 250 mb best upper level diffluence is off to 
the east of the area thanks to an upper level ridge moving into 
central Texas. At 500 mb heights have also started to rise across 
southeast Texas thanks to a building ridge. The rap performed 
pretty well yesterday and shows almost no rain for southeast Texas 
except for a spotty shower or two in San Jacinto and Liberty 
counties later this afternoon. The Texas tech WRF also shows this. 
Given the evidence from the upper level maps mentioned above this 
makes sense. 


The upper level ridge will continue to build and position itself 
near the Arkansas/ Louisiana border on Friday. The heat advisory 
will likely be needed through the weekend. By Sunday the ridge 
will begin to weaken. GFS forecast soundings still show relatively 
low precipitable water air in place for this time of year and a cap in place at 
850mb. On Monday the cap weakens enough to introduce the chance of 
rain back into the forecast. The chance of afternoon showers and 
thunderstorms and above normal temperatures looks to remain in 
place through next Wednesday. 23 


Marine... 
moderate onshore winds will persist through tonight and begin to 
relax by Friday morning. Will maintain the scec for the Gulf waters 
through the early morning. Surface high pressure will be centered 
over the western Gulf by Sunday morning and the pressure gradient 
will slacken considerably. Light winds are expected over the weekend 
and into the first half of next week. 43 


&& 


Preliminary point temps/pops... 
College Station (cll) 98 77 99 77 99 / 10 10 10 10 10 
Houston (iah) 97 77 97 77 97 / 10 10 10 10 10 
Galveston (gls) 92 84 92 84 92 / 20 10 10 10 10 


&& 


Hgx watches/warnings/advisories... 
Texas...heat advisory until 7 PM CDT this evening for the following 
zones: Brazoria...Chambers...Galveston...Jackson... 
Matagorda. 


GM...small craft should exercise caution until 10 am CDT this morning 
for the following zones: waters from Freeport to the 
Matagorda Ship Channel 20 nm to 60 nm. 


&& 


$$ 


Discussion...23 
aviation/marine...43 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.