Nassau Bay, Texas Weather Conditions

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Current Conditions

  • 84°
  • Scattered Clouds
  • Wind: NW 7 mph
  • Humidity: 74%
  • Visibility: 9.0 miles
  • Dew Point: 75°
  • Pressure: 30.06 in. -
  • Heat Index: 92

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Partly Cloudy
Partly Cloudy
88°
91°
88°
88°
82°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 95 °
  • Low: 79 °
  • Chance of T-Storms
  • Thursday
  • Chance of a Thunderstorm
  • High: 95 °
  • Low: 79 °
  • Chance of T-Storms
  • Friday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 77 °
  • Chance of a Thunderstorm
  • Saturday
  • Partly Cloudy
  • High: 93 °
  • Low: 79 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 93 °
  • Low: 77 °
  • Partly Cloudy

Forecast for Nassau Bay, Texas

Updated: 10:00 AM CDT on July 23, 2014

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 95F. Winds less than 5 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 79F. Winds from the SSW at 5 to 10 mph.

  • Thursday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 95F with a heat index of 102F. Winds less than 5 mph. Chance of rain 30%.

  • Thursday Night

    Partly cloudy. Low of 79F. Winds from the SSW at 5 to 10 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 93F with a heat index of 102F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy. Low of 77F. Winds from the SSW at 10 to 15 mph.

  • Saturday

    Partly cloudy. High of 93F with a heat index of 99F. Winds from the SSW at 5 to 15 mph.

  • Saturday Night

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

  • Sunday

    Partly cloudy. High of 93F with a heat index of 104F. Winds from the South at 5 to 15 mph.

  • Sunday Night

    Clear. Low of 77F. Winds from the SSW at 5 to 15 mph.

  • Monday

    Mostly cloudy. High of 97F with a heat index of 104F. Winds from the SSW at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Low of 75F. Winds from the SSW at 5 to 15 mph.

  • Tuesday

    Mostly cloudy. High of 91F with a heat index of 99F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the SSW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. High of 90F. Winds from the NE at 5 to 10 mph shifting to the SE in the afternoon. Chance of rain 30%.

  • Wednesday Night

    Overcast with a chance of rain. Low of 75F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Overcast. High of 88F. Winds less than 5 mph.

  • Thursday Night

    Mostly cloudy. Low of 75F. Winds less than 5 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 90F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm. Low of 73F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Clear with a chance of a thunderstorm. High of 90F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Clear. Low of 73F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Nassau Bay Fire Station, Nassau Bay, TX

Updated: 11:15 AM CDT

Temperature: 86.3 °F Dew Point: 80 °F Humidity: 83% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

Location: Oak Brook, Houston, TX

Updated: 11:15 AM CDT

Temperature: 84.2 °F Dew Point: 79 °F Humidity: 84% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Clear Lake City, Houston, TX

Updated: 11:13 AM CDT

Temperature: 85.6 °F Dew Point: 78 °F Humidity: 78% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Eastcape Court, Webster, TX

Updated: 11:15 AM CDT

Temperature: 86.2 °F Dew Point: 83 °F Humidity: 89% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Oakbrook West, Houston, TX

Updated: 11:08 AM CDT

Temperature: 86.9 °F Dew Point: 80 °F Humidity: 80% Wind: NE at 5.8 mph Pressure: 29.92 in Hourly Precipitation: - Heat Index: 103 °F Graphs

Location: MesoWest SHELL TX US UPR, League City, TX

Updated: 7:40 AM CDT

Temperature: 83 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Brookwood, Houston, TX

Updated: 11:15 AM CDT

Temperature: 84.2 °F Dew Point: 81 °F Humidity: 89% Wind: North at 5.8 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: South Shore Park, League City, TX

Updated: 11:15 AM CDT

Temperature: 85.4 °F Dew Point: 79 °F Humidity: 82% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.01 in Heat Index: 99 °F Graphs

Location: Bay Knoll, Houston, TX

Updated: 11:11 AM CDT

Temperature: 86.3 °F Dew Point: 79 °F Humidity: 78% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: Waterford Harbor, Kemah, TX

Updated: 11:15 AM CDT

Temperature: 89.1 °F Dew Point: 78 °F Humidity: 69% Wind: NNE at 2.7 mph Pressure: 29.78 in Hourly Precipitation: - Heat Index: 103 °F Graphs

Location: Kirby Bend, Seabrook, TX

Updated: 11:14 AM CDT

Temperature: 88.7 °F Dew Point: 79 °F Humidity: 74% Wind: SSW at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Timber Cove, Taylor Lake Village, TX

Updated: 11:15 AM CDT

Temperature: 85.0 °F Dew Point: 77 °F Humidity: 79% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: East League City, League City, TX

Updated: 11:15 AM CDT

Temperature: 88.4 °F Dew Point: 82 °F Humidity: 80% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

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

Updated: 11:14 AM CDT

Temperature: 88.4 °F Dew Point: 80 °F Humidity: 75% Wind: WSW at 1.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 104 °F Graphs

Location: Castle Under the Oaks, League City, TX

Updated: 11:15 AM CDT

Temperature: 86.5 °F Dew Point: 78 °F Humidity: 76% Wind: East at 3.1 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Heritage Park, Webster, TX

Updated: 11:15 AM CDT

Temperature: 86.9 °F Dew Point: 43 °F Humidity: 22% Wind: Calm Pressure: 29.91 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Lake Cove, Seabrook, TX

Updated: 11:15 AM CDT

Temperature: 89.7 °F Dew Point: 81 °F Humidity: 76% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

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

Updated: 11:08 AM CDT

Temperature: 93.7 °F Dew Point: 79 °F Humidity: 63% Wind: Calm Pressure: 29.77 in Hourly Precipitation: - Heat Index: 112 °F Graphs

Location: Pinebrook, Houston, TX

Updated: 11:15 AM CDT

Temperature: 90.5 °F Dew Point: 79 °F Humidity: 69% Wind: North at 2.2 mph Pressure: 29.68 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Harbor Park, League City, TX

Updated: 11:15 AM CDT

Temperature: 87.6 °F Dew Point: 80 °F Humidity: 78% Wind: ESE at 1.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 104 °F Graphs

Location: Challenger 7 Memorial Park, Webster, TX

Updated: 11:10 AM CDT

Temperature: 86.3 °F Dew Point: 80 °F Humidity: 81% Wind: West at 4.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: Nana's House, League City, TX

Updated: 11:11 AM CDT

Temperature: 86.9 °F Dew Point: 80 °F Humidity: 81% Wind: NNW at 1.7 mph Pressure: 29.98 in Hourly Precipitation: - Heat Index: 103 °F Graphs

Location: Magnolia Estates, League City, TX

Updated: 11:15 AM CDT

Temperature: 87.4 °F Dew Point: 79 °F Humidity: 77% Wind: West at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 11:15 AM CDT

Temperature: 89.2 °F Dew Point: 81 °F Humidity: 76% Wind: North at 2.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 11:15 AM CDT

Temperature: 84.7 °F Dew Point: 77 °F Humidity: 78% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Pasadena - Gulf Bayport Chemicals, Pasadena, TX

Updated: 11:14 AM CDT

Temperature: 86.5 °F Dew Point: 78 °F Humidity: 75% Wind: NNW at 2.9 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Friendswood - Forest Bend, Friendswood, TX

Updated: 11:11 AM CDT

Temperature: 84.8 °F Dew Point: 79 °F Humidity: 82% Wind: WNW at 2.0 mph Pressure: 30.03 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Brittany Lakes, League City, TX

Updated: 11:15 AM CDT

Temperature: 85.3 °F Dew Point: 79 °F Humidity: 81% Wind: NNE at 1.0 mph Pressure: 30.33 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Galveston Bay, Seabrook, TX

Updated: 11:15 AM CDT

Temperature: 80.0 °F Dew Point: 80 °F Humidity: 100% Wind: SSW at 6.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: LaPorte - Air Liquide, Pasadena, TX

Updated: 11:15 AM CDT

Temperature: 86.2 °F Dew Point: 78 °F Humidity: 77% Wind: NNE at 4.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Brittany Lakes, League City, TX

Updated: 10:58 AM CDT

Temperature: 80.8 °F Dew Point: 81 °F Humidity: 99% Wind: West at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 90 °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 
1018 am CDT Wednesday Jul 23 2014 


Discussion... 
had some showers and thunderstorms this morning...some with heavy 
downpours and frequent lightning. These have diminished somewhat 
and are moving slowly toward the southwest...but with daytime 
heating should see coverage increase once again as we go through 
the afternoon. Boundaries left over from morning convection...and 
Bay and sea breezes...will act as focii for new activity. Should 
be mostly over coastal two tiers of counties...but cant rule out 
isolated storm father inland. 46 


&& 


Previous discussion... /issued 641 am CDT Wednesday Jul 23 2014/ 


Discussion... 
12z taf discussion in aviation section. 


Aviation... 
radar showing some showers in and near kiah/khou this morning with 
a more organized line of thunderstorms and rain in the Gulf southeast of kgls. Started 
these tafs with vcsh/thunderstorms in the vicinity for a couple of hours. Do not think this 
activity will persist much past a few hours. There is a bit of an 
enhanced moisture axis supporting this activity but it does not 
extend much farther inland. Will keep most tafs dry in the 
afternoon but could see a few storms on the sea breeze this 
afternoon. Will keep thunderstorms in the vicinity in tafs for a 3 hour window this afternoon 
at kiah/khou. Tonight should be a repeat of last night with mainly 
VFR ceilings and calm winds. May see some lower visibility at the usual 
sites of kcxo/klbx et cetera. 


39 


Previous discussion... /issued 435 am CDT Wednesday Jul 23 2014/ 


Discussion... 
with an upper level high pressure area centered near the 4-corners 
to the west...and an upper low near the mouth of the Mississippi 
River to the east...southeast Texas will be under a northeasterly 
flow aloft once again today. A weak surface boundary located over 
southern Louisiana extended westward into the eastern counties 
north of Interstate 10 and east of Interstate 45. The boundary was 
rather diffuse but at 4 am looked to be located between kbpt and 
kjas to between kuts and klfk. The slightly drier air to the north 
of this boundary was picked up by the models. All of these 
factors should help provide for the development of thunderstorms 
today. 


A consensus of the models shows that the best chances for showers 
and thunderstorms will be near and off the coast this morning into 
the early afternoon. The late afternoon and early evening then 
should see better chances over the inland areas mainly from the 
Highway 59 corridor to the coast. Storm motion will generally be 
from east-northeast to west-southwest...although mesoscale-scale 
processes may throw a wrench into that equation. As occurred 
yesterday...strong gusty winds and brief heavy downpours will be 
possible in the stronger storms. 


With the upper low shearing out over the coastal waters on 
Thursday and Friday...rain chances will become isolated and the 
temperatures will become the main focus. Upper 90s are possible 
over the far inland areas both days but will become more common 
over the weekend through Monday. Some of the guidance is 
suggesting that the far inland areas may reach to around 100 
during this period. 


By around Tuesday of next week...the GFS and European model (ecmwf) were digging an 
upper trough from the Great Lakes to the northern Gulf Coast. Both 
models push a cold front southward and backdoor the front into at 
least the northeastern counties of the forecast area on Tuesday 
and Wednesday. Kept isolated thunderstorm chances and slightly 
cooler daytime temperatures in place for both days. 


40 


Marine... 
seabreezes in the afternoon and landbreezes in the morning are 
expected again today and tomorrow. Upper level low near miss river 
Delta fills and shifts west slowly today/tomorrow. This should 
expand towards the Upper Texas coastal waters resulting in a slight 
increase in coverage for showers and thunderstorms. Then upper 
level ridge dominates the weather and the southerly flow continues 
albeit with a slight increase in speeds for Friday and Saturday. 
No scec or Small Craft Advisory conditions expected throughout the forecast period. 
39 


Aviation... 


Early look at changes for 12z tafs...convection will be main 
concern as coverage could be a bit more than yesterday. Upper 
low over miss river Delta could be a factor. Other question will 
be just how much deep moisture is available for thunderstorms and rain. Look for 
sea/land breeze circulation along the coast for kgls/klbx. Overall 
light winds/VFR ceilings but could see some patchy fog this morning. 
Look for similar trends going into tonight/tomorrow. 39 


&& 


Preliminary point temps/pops... 
College Station (cll) 97 76 99 76 97 / 20 20 20 10 10 
Houston (iah) 96 76 98 77 95 / 30 20 30 10 20 
Galveston (gls) 91 80 93 80 92 / 30 20 30 10 20 


&& 


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


$$ 






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