Nassau Bay, Texas Weather Conditions

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

  • 82°
  • Scattered Clouds
  • Wind: SSE 7 mph
  • Humidity: 79%
  • Visibility: 10.0 miles
  • Dew Point: 75°
  • Pressure: 30.02 in. 0
  • Heat Index: 90

Select a Section

Click a section below for more information.

Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
81°
85°
91°
90°
88°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Partly Cloudy
  • High: 91 °
  • Low: 78 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 94 °
  • Low: 77 °
  • Clear
  • Thursday
  • Clear
  • High: 94 °
  • Low: 76 °
  • Clear
  • Friday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 76 °
  • Chance of T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 75 °
  • Chance of T-Storms

Forecast for Nassau Bay, Texas

Updated: 4:22 am CDT on July 7, 2015

  • Today

    Partly cloudy. A 20 percent chance of showers early in the morning...then a 20 percent chance of showers and thunderstorms in the late morning and afternoon. Highs in the lower 90s. South winds 10 to 15 mph. Heat index readings 102 to 107.

  • Tonight

    Mostly clear until late night then becoming partly cloudy. A slight chance of showers after midnight. Lows in the upper 70s. South winds 10 to 15 mph.

  • Wednesday

    Partly cloudy. Highs in the lower 90s. South winds 10 to 15 mph.

  • Wednesday Night

    Partly cloudy. Lows in the mid 70s. South winds 10 to 15 mph.

  • Thursday

    Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southeast winds 10 to 15 mph.

  • Thursday Night

    Partly cloudy. Lows in the mid 70s.

  • Friday

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the lower 90s.

  • Friday Night

    Partly cloudy. Lows in the mid 70s.

  • Saturday

    Partly cloudy. A 20 percent chance of showers and thunderstorms in the morning...then a 30 percent chance in the afternoon. Highs in the lower 90s.

  • Saturday Night

    Partly cloudy. Lows in the mid 70s.

  • Sunday

    Partly cloudy. Highs in the lower 90s.

  • Sunday Night

    Partly cloudy. Lows in the mid 70s.

  • Monday

    Partly cloudy in the morning then becoming mostly sunny. Highs in the lower 90s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Nassau Bay Fire Station, Nassau Bay, TX

Updated: 6:07 AM CDT

Temperature: 81.8 °F Dew Point: 79 °F Humidity: 92% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: APRSWXNET, Houston, TX

Updated: 5:48 AM CDT

Temperature: 81 °F Dew Point: 77 °F Humidity: 89% Wind: SSE at 3 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Clear Lake, Houston, TX

Updated: 6:05 AM CDT

Temperature: 81.7 °F Dew Point: 80 °F Humidity: 93% Wind: North at - Pressure: 30.05 in Hourly Precipitation: - Heat Index: 91 °F Graphs

Location: Oak Brook, Houston, TX

Updated: 5:54 AM CDT

Temperature: 81.1 °F Dew Point: 76 °F Humidity: 85% Wind: Calm Pressure: 29.83 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: Clear Lake City, Houston, TX

Updated: 6:05 AM CDT

Temperature: 81.1 °F Dew Point: 78 °F Humidity: 90% Wind: South at 6.9 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: The Lakefront, League City, TX

Updated: 6:07 AM CDT

Temperature: 79.1 °F Dew Point: 73 °F Humidity: 82% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Marina Palms, League City, TX

Updated: 5:58 AM CDT

Temperature: 80.6 °F Dew Point: 80 °F Humidity: 99% Wind: SSW at 4.2 mph Pressure: 29.90 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Webster Public Works, Webster, TX

Updated: 6:07 AM CDT

Temperature: 81.9 °F Dew Point: 80 °F Humidity: 94% Wind: ESE at 4.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Bay Forest, Houston, TX

Updated: 5:58 AM CDT

Temperature: 80.6 °F Dew Point: 80 °F Humidity: 99% Wind: SSW at 1.1 mph Pressure: 29.91 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Oakbrook West, Houston, TX

Updated: 5:53 AM CDT

Temperature: 81.1 °F Dew Point: 76 °F Humidity: 86% Wind: WSW at 3.2 mph Pressure: 29.86 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: South Shore Harbour, League City, TX

Updated: 6:05 AM CDT

Temperature: 81.9 °F Dew Point: 79 °F Humidity: 90% Wind: North at - Pressure: 30.07 in Hourly Precipitation: - Heat Index: 91 °F Graphs

Location: MesoWest, League City, TX

Updated: 5:00 AM CDT

Temperature: 87 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: South Shore Harbour Shore 1 Green, League City, TX

Updated: 6:07 AM CDT

Temperature: 81.3 °F Dew Point: 78 °F Humidity: 90% Wind: SSE at 1.8 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: YCCA Marina, Seabrook, TX

Updated: 5:58 AM CDT

Temperature: 82.2 °F Dew Point: 79 °F Humidity: 90% Wind: SSE at 4.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Taylor Lake Village, Seabrook, TX

Updated: 6:07 AM CDT

Temperature: 81.7 °F Dew Point: 79 °F Humidity: 91% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Historic District, League City, TX

Updated: 6:07 AM CDT

Temperature: 81.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Marina Bay Park, League City, TX

Updated: 6:07 AM CDT

Temperature: 80.4 °F Dew Point: 76 °F Humidity: 88% Wind: ESE at 1.1 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Brookwood, Houston, TX

Updated: 6:07 AM CDT

Temperature: 80.0 °F Dew Point: 75 °F Humidity: 86% Wind: South at 4.6 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Bay Knoll, Houston, TX

Updated: 5:57 AM CDT

Temperature: 80.6 °F Dew Point: 78 °F Humidity: 92% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Waterford Harbor, Kemah, TX

Updated: 5:53 AM CDT

Temperature: 81.3 °F Dew Point: 77 °F Humidity: 86% Wind: South at 2.7 mph Pressure: 29.74 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: Brookwood - Nemecs, Houston, TX

Updated: 5:56 AM CDT

Temperature: 80.2 °F Dew Point: 78 °F Humidity: 92% Wind: SSW at 3.2 mph Pressure: 29.66 in Hourly Precipitation: - Heat Index: 87 °F Graphs

Location: Kirbybend, Seabrook, TX

Updated: 6:07 AM CDT

Temperature: 81.9 °F Dew Point: 78 °F Humidity: 89% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Timber Cove, Taylor Lake Village, TX

Updated: 6:07 AM CDT

Temperature: 81.0 °F Dew Point: 80 °F Humidity: 97% Wind: South at 4.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Old El Lago, El Lago, TX

Updated: 6:07 AM CDT

Temperature: 82.2 °F Dew Point: 76 °F Humidity: 80% Wind: SE at 5.1 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

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

Updated: 6:00 AM CDT

Temperature: 80.6 °F Dew Point: 78 °F Humidity: 92% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Clear Lake, Houston, TX

Updated: 6:05 AM CDT

Temperature: 82.4 °F Dew Point: 78 °F Humidity: 86% Wind: North at - Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Kirby Lake, Seabrook, TX

Updated: 6:07 AM CDT

Temperature: 82.0 °F Dew Point: 78 °F Humidity: 88% Wind: SSE at 3.6 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Castle Under the Oaks, League City, TX

Updated: 6:05 AM CDT

Temperature: 82.0 °F Dew Point: 78 °F Humidity: 87% Wind: South at 1.6 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: APRSWXNET, League City, TX

Updated: 5:41 AM CDT

Temperature: 81 °F Dew Point: 78 °F Humidity: 91% Wind: SSW at 1 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Heritage Park, Webster, TX

Updated: 6:07 AM CDT

Temperature: 80.2 °F Dew Point: 78 °F Humidity: 92% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Glencove Drive, Seabrook, TX

Updated: 6:05 AM CDT

Temperature: 81.1 °F Dew Point: 79 °F Humidity: 93% Wind: North at - Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

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

Updated: 6:03 AM CDT

Temperature: 80.6 °F Dew Point: 79 °F Humidity: 95% Wind: SSE at 1.7 mph Pressure: 29.72 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: Bay Pointe, Houston, TX

Updated: 6:07 AM CDT

Temperature: 81.7 °F Dew Point: 62 °F Humidity: 52% Wind: SE at 1.1 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Harbor Park, League City, TX

Updated: 5:31 AM CDT

Temperature: 81.5 °F Dew Point: 79 °F Humidity: 92% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Challenger 7 Memorial Park, Webster, TX

Updated: 6:01 AM CDT

Temperature: 81.1 °F Dew Point: 78 °F Humidity: 91% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Nana's House, League City, TX

Updated: 5:55 AM CDT

Temperature: 81.0 °F Dew Point: 80 °F Humidity: 98% Wind: SSE at 2.7 mph Pressure: 29.93 in Hourly Precipitation: - Heat Index: 90 °F Graphs

Location: Magnolia Estates, League City, TX

Updated: 6:07 AM CDT

Temperature: 81.3 °F Dew Point: 78 °F Humidity: 90% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 89 °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 
502 am CDT Tuesday Jul 7 2015 


Discussion... 
at 4 this morning temperatures were still in the lower 80s at the 
coast and upper 70s to around 80 inland with a little stronger 
southerly winds than yesterday. A smattering of showers near the coast 
around midnight through 3 am have been waning but expect that they 
will redevelop toward morning. 


Today expecting the moisture levels to continue to increase 
slightly with the hrrr being the most aggressive with the moisture 
return. 1.6-1.75" precipitable water should be present by around noon and with 
daytime heating a few showers and thunderstorms should develop. 
NAM sounding shows it uncapped at 21z with 2500j/kg and dcape near 
1100j/kg but the moisture may be more limited. GFS isn't as 
unstable and appears to show the subsident warming going on at 
700mb as of 00z in the crp sounding and upper air analysis. Will carry 20 
probability of precipitation south this morning shifting inland in the afternoon. Storms 
may produce gusty winds of 25-35kts in the stronger ones that do 
form. Storm motions appears fast enough and more isolated nature 
of the cells should limit any flooding threat. These afternoon 
showers and thunderstorms should dissipate by or before 6 PM. 


A few showers possible again tomorrow morning toward the coast but 
drier atmosphere should be overhead which will likely lead to 
higher afternoon temperatures with no rain expected. The broad 
upper level ridging over the Gulf lifts north and strengthens 
Wednesday then expands back to the west blanketing MS/la/TX by 
Friday. A weak upper short wave bouncing along the south side of the ridge 
moves out of la into Texas Friday with easterly flow picking up some 
of pool of deeper moisture over la/NC Gulf and spreading it into 
southeast Texas Friday. If the cap isn't too strong this may be the day with 
the highest rain chances for the week. 


Afternoon temperatures this week should be at normal or above by 
a few degrees and mins well above normal so combined with the high 
dewpoints this will keep the heat index readings each day in the 
95-103 degree range. Tropics are quiet and should remain so 
through at least Monday and more likely Tuesday. Caribbean 
moisture does look to surge up into the Gulf next Tuesday. 
45 


&& 
marine... 
a tighter pressure gradient this morning has allowed for winds 
around 15 kts in offshore areas with seas around 4-5ft. Caution 
flags will continue into the afternoon as expect winds to remain 
around 15kts for much of the Upper Texas coast. Cautions may be 
needed into tonight and Wednesday morning until the pressure gradient 
weakens thrusday into Friday. Seas should remain around 3-4ft near 
shore and 4-5ft offshore going into the end of the week. By the 
weekend winds should be down to around 10 knots with seas closer 
to 3ft. 


39 


$$ 


Preliminary point temps/pops... 
College Station (cll) 93 77 94 75 93 / 20 0 10 10 10 
Houston (iah) 93 78 94 76 92 / 20 0 10 10 10 
Galveston (gls) 90 82 90 81 90 / 20 20 10 10 10 


&& 


Hgx watches/warnings/advisories... 
Texas...none. 
GM...small craft should exercise caution through this afternoon for 
the following zones: waters from Freeport to the Matagorda 
Ship Channel 20 nm to 60 nm...waters from Freeport to the 
Matagorda Ship Channel out 20 nm...waters from High Island 
to Freeport 20 to 60 nm...waters from High Island to 
Freeport out 20 nm. 


&& 


$$ 


Discussion...45 
marine/aviation...39 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.