Galveston, Texas Weather Conditions

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Current Conditions

  • 84°
  • Scattered Clouds
  • Wind: SE 13 mph
  • Humidity: 74%
  • Visibility: 10.0 miles
  • Dew Point: 75°
  • Pressure: 29.99 in. 0
  • Heat Index: 92

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Next 12 Hours

1  am
4  am
7  am
10  am
1  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Chance of a Thunderstorm
Chance of T-storms
82°
81°
81°
84°
88°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 81 °
  • Chance of a Thunderstorm
  • Friday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 75 °
  • Chance of T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 77 °
  • Chance of a Thunderstorm
  • Sunday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 79 °
  • Chance of T-Storms
  • Monday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 77 °
  • Chance of T-Storms

Forecast for Galveston, Texas

Updated: 10:00 PM CDT on July 30, 2014

  • Thursday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 88F with a heat index of 97F. Winds from the South at 5 to 15 mph. Chance of rain 20%.

  • Thursday Night

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 81F with a heat index of 91F. Winds from the SSW at 10 to 15 mph. Chance of rain 30%.

  • Friday

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 88F with a heat index of 93F. Winds from the WSW at 5 to 15 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 75F. Winds from the South at 5 to 15 mph shifting to the WSW after midnight. Chance of rain 30% with rainfall amounts near 0.4 in. possible.

  • Saturday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 86F with a heat index of 91F. Winds from the NNE at 5 to 15 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear with a chance of a thunderstorm and rain. Low of 77F. Winds less than 5 mph. Chance of rain 50%.

  • Sunday

    Partly cloudy with a chance of a thunderstorm and rain. High of 88F with a heat index of 93F. Winds from the ENE at 5 to 10 mph. Chance of rain 50%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear with a chance of a thunderstorm and rain. Low of 79F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Monday

    Partly cloudy with a chance of a thunderstorm and rain. High of 86F with a heat index of 93F. Winds from the NE at 5 to 15 mph shifting to the ESE in the afternoon. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 90F with a heat index of 95F. Winds from the NNW at 5 to 10 mph shifting to the SE in the afternoon. Chance of rain 40%.

  • Tuesday Night

    Clear. Low of 79F. Winds from the South at 5 to 15 mph.

  • Wednesday

    Clear with a chance of a thunderstorm. High of 90F. Winds from the South at 5 to 15 mph. Chance of rain 30%.

  • Wednesday Night

    Clear. Low of 81F. Winds from the South at 5 to 15 mph.

  • Thursday

    Clear. High of 90F. Winds from the SSW at 5 to 10 mph.

  • Thursday Night

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

  • Friday

    Clear. High of 90F. Winds from the SSW at 5 to 10 mph.

  • Friday Night

    Clear. Low of 79F. Winds from the South at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 90F. Winds from the South at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 81F. Winds from the SSE at 5 to 10 mph.

  • Sunday

    Clear. High of 90F. Winds from the SSE at 5 to 10 mph.

  • Sunday Night

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

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: TAMUG Waterfront Operations, Galveston, TX

Updated: 12:21 AM CDT

Temperature: 84.4 °F Dew Point: 69 °F Humidity: 60% Wind: North at 9.8 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Tiki Island, Tiki Island, TX

Updated: 12:21 AM CDT

Temperature: 84.1 °F Dew Point: 77 °F Humidity: 80% Wind: ESE at 4.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

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

Updated: 12:21 AM CDT

Temperature: 83.9 °F Dew Point: 77 °F Humidity: 80% Wind: ESE at 10.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: H2O House, Tiki Island, TX

Updated: 12:13 AM CDT

Temperature: 84.4 °F Dew Point: 78 °F Humidity: 82% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Texas City, TX

Updated: 12:13 AM CDT

Temperature: 84.0 °F Dew Point: 77 °F Humidity: 78% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Pirates Beach Galveston, Galveston, TX

Updated: 12:20 AM CDT

Temperature: 85.3 °F Dew Point: 79 °F Humidity: 81% Wind: South at 16.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Pirate's Cove, Galveston, TX

Updated: 12:07 AM CDT

Temperature: 83.6 °F Dew Point: 77 °F Humidity: 79% Wind: East at 4.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Palm Beach, Galveston, TX

Updated: 12:17 AM CDT

Temperature: 83.3 °F Dew Point: 74 °F Humidity: 74% Wind: ESE at 7.8 mph Pressure: 29.92 in Hourly Precipitation: - Heat Index: 90 °F Graphs

Location: Crystal Beach Fire Rescue, Galveston, TX

Updated: 12:14 AM CDT

Temperature: 83.3 °F Dew Point: 73 °F Humidity: 72% Wind: SE at 12.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: San Leon, San Leon, TX

Updated: 12:21 AM CDT

Temperature: 81.7 °F Dew Point: 75 °F Humidity: 80% Wind: SE at 9.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

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

Updated: 12:21 AM CDT

Temperature: 83.8 °F Dew Point: 74 °F Humidity: 72% Wind: SE at 18.3 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Whispering Lakes Ranch, League City, TX

Updated: 12:21 AM CDT

Temperature: 82.0 °F Dew Point: 77 °F Humidity: 84% Wind: North at 2.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Milan Circle, Santa Fe, TX

Updated: 12:21 AM CDT

Temperature: 80.6 °F Dew Point: 75 °F Humidity: 83% Wind: Calm Pressure: 18.12 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: K5ZXZ Santa Fe, TX

Updated: 12:21 AM CDT

Temperature: 81.4 °F Dew Point: 75 °F Humidity: 81% Wind: SE at 2.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Mikeg Weather station on Highland Rd, Santa Fe, TX

Updated: 10:30 PM CDT

Temperature: 81.5 °F Dew Point: 78 °F Humidity: 88% Wind: ESE at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 12:21 AM CDT

Temperature: 84.0 °F Dew Point: 73 °F Humidity: 70% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Santa Fe, TX

Updated: 12:21 AM CDT

Temperature: 80.8 °F Dew Point: 59 °F Humidity: 48% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 12:15 AM CDT

Temperature: 81.7 °F Dew Point: 77 °F Humidity: 86% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Satsuma Warehouse, Dickinson, TX

Updated: 12:16 AM CDT

Temperature: 80.6 °F Dew Point: 77 °F Humidity: 88% Wind: ESE at 3.2 mph Pressure: 29.69 in Hourly Precipitation: - Heat Index: 87 °F Graphs

Location: Harbor Park, League City, TX

Updated: 12:20 AM CDT

Temperature: 81.7 °F Dew Point: 76 °F Humidity: 83% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

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

Updated: 12:16 AM CDT

Temperature: 81.1 °F Dew Point: 75 °F Humidity: 83% Wind: ESE at 4.2 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: 87 °F Graphs

Location: Bay Colony West, Dickinson, TX

Updated: 12:13 AM CDT

Temperature: 79.7 °F Dew Point: 76 °F Humidity: 87% Wind: SSE at 2.2 mph Pressure: 29.71 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Castle Under the Oaks, League City, TX

Updated: 12:20 AM CDT

Temperature: 82.9 °F Dew Point: 75 °F Humidity: 77% Wind: SE at 1.6 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

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

Updated: 12:15 AM CDT

Temperature: 81.0 °F Dew Point: 76 °F Humidity: 84% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: East League City, League City, TX

Updated: 12:21 AM CDT

Temperature: 82.8 °F Dew Point: 77 °F Humidity: 82% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Prairie Estates, Dickinson, TX

Updated: 12:06 AM CDT

Temperature: 79.5 °F Dew Point: 76 °F Humidity: 89% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Waterford Harbor, Kemah, TX

Updated: 12:12 AM CDT

Temperature: 81.7 °F Dew Point: 73 °F Humidity: 76% Wind: South at 2.7 mph Pressure: 29.71 in Hourly Precipitation: - Heat Index: 87 °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 
1140 PM CDT Wednesday Jul 30 2014 


Discussion... 
see aviation for 6z taf issuance. 


&& 


Aviation... 
confidence has started to grow that showers and thunderstorms will 
be possible tomorrow as a front sags to the south. The front will 
be through College Station by 6 PM with showers and thunderstorms 
starting early afternoon at our northern taf sites. Late afternoon 
into evening these showers and thunderstorms should continue to 
push south. Global models continue to agree on showers and 
thunderstorms firing with the Texas tech WRF now also coming on 
board (the ttwrf did initialize poorly though). Given the boundary 
across the area and high moisture values (pwat values ~2.00") rain 
looks possible. Confidence is not high on the storms making it to 
kgls though. The boundary will likely not make it to kgls Thursday 
night into Friday morning. How far the boundary makes it will 
likely determine if kgls gets rain. These storms will also likely 
not be moving fast. 23 


&& 


Previous discussion... /issued 944 PM CDT Wednesday Jul 30 2014/ 


Discussion... 
short term update for increasing cin and cloud cover. Have lowered 
probability of precipitation tonight based on the high res models and synoptic models for 
that matter showing decreasing coverage of the storms along the 
frontal boundary. Lead short wave can be seen on WV moving through OK and 
helped with initiation of storms in central OK and trailing back 
along the frontal boundary. This short wave tracks east-southeast and looks to be 
rapidly outrunning the ll focus. Speed maximum that should help aid 
development tomorrow may be far enough to the northeast to have 
less impact but still enough with frontal convergence for 
overcoming the cap and producing scattered showers and 
thunderstorms in the morning up north and inland areas in the 
afternoon. Satellite and sref do have the area underneath the 
moist axis so confidence is still pretty high that the region will 
see the scattered storms and probability of precipitation may need bumping up. Some 
doubts about how far south it will move as outflow may be the best 
means to get it to the coast and the best dcape is in the middle 
afternoon hours. 
45 


Previous discussion... /issued 646 PM CDT Wednesday Jul 30 2014/ 


Discussion... 
see aviation for 0z taf issuance. 


Aviation... 
all sites VFR this afternoon as next storm system to affect 
southeast Texas is currently located in Oklahoma. Last night some 
sites briefly went MVFR and think there will be another slight 
chance tonight but any sites that do go MVFR should quickly 
bounce back to VFR as the sunrises. Tomorrow afternoon a surface 
cold front currently located in Oklahoma will move southwards and 
approach the area. GFS and NAM both show precipitation starting at kcll 
around 1 PM. Rain chances then move into the city around 5 PM. 
Global models continue to show pretty good coverage in the quantitative precipitation forecast 
fields while the high res models show coverage quickly dissipating 
as rain moves into southeast Texas. Forecast soundings show a cap 
in place tomorrow that quickly dissipates as the shortwave 
approaches. Overall have leaned towards the global models due to 
the boundary remaining in close proximity to the area with ample 
moisture. Future taf packages will continue to refine the coverage 
and timing of potential precipitation. 23 


Previous discussion... /issued 317 PM CDT Wednesday Jul 30 2014/ 


Discussion... 
the models keep a northwesterly flow over southeast Texas through the 
upcoming weekend. This will help drive a weak cold front into the 
forecast area late on Thursday or early Friday. Both the GFS and 
European model (ecmwf) hang the front up along or off the coast through the 
weekend. During the early part of next week both models do appear 
to try and build the upper ridge back overhead...but both do keep 
a weakness in the ridge over the lower Mississippi Valley and the 
northwestern Gulf of Mexico. Both models do push the weak front 
back inland Monday and Tuesday. 


The main forecast challenge is thunderstorm chances and coverage 
late Thursday into Friday. Also concerned about the possibility 
of locally heavy rainfall. A decent shortwave trough will 
accompany the cold front into southeast Texas. At the same time...the upper 
levels show a good diffluent flow. Even though the model guidance 
keeps the probability of precipitation generally between 30 and 40 percent...the forecast 
soundings show precipitable water/S up to around 2.3 inches and cape values 
between 2000 and 3000. Will monitor the model trends over the next 
24 hours in order to pinpoint the best chances and coverage of the 
rainfall threat. 


The models keep best rainfall chances along or off the coast from 
late Friday through Monday. After the frontal boundary moves 
inland...isolated chances still look possible Tuesday and 
Wednesday. 


40 


Marine... 
light...mainly onshore flow will persist through Thursday night. A cool 
front will approach the coast Friday. This boundary will meander 
back and forth near the coastline through the weekend and should 
serve as a focus for showers and thunderstorms. Light/variable 
winds should persist with low seas - exception being in and near 
storms which could be strong at times. More prevalent onshore flow 
should resume early next week...but winds/seas still don't look 
very impressive. 47 


Previous discussion... /issued 1217 PM CDT Wednesday Jul 30 2014/ 


Aviation... 
should see a fairly quiet 18-24 hours with mainly VFR conditions 
persisting. May see some isolated afternoon thunderstorm cells pop up...so will 
keep an eye on things. But chances look too low to mention in 
individual tafs at this time. Similar conditions tonight as last night 
with just some brief & patchy MVFR ceilings/visible late. Thunderstorm chances 
increase Thursday afternoon as cool front moves closer to southeast Texas. This 
boundary along west/ seabreeze will provide a focusing mechanism. 
Potential exists for some localized strong cells. 47 


&& 


Preliminary point temps/pops... 
College Station (cll) 74 93 72 91 71 / 10 30 30 20 10 
Houston (iah) 74 94 75 90 72 / 10 20 40 40 30 
Galveston (gls) 81 91 80 88 79 / 10 20 30 40 30 


&& 


Hgx watches/warnings/advisories... 
Texas...none. 
GM...none. 
&& 


$$ 


Aviation/marine...23 






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