Katy, Texas Weather Conditions

Severe Weather Alerts

National Weather Service:

Special Statement 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

  • 93°
  • Partly Cloudy
  • Wind: South 13 mph
  • Humidity: 49%
  • Visibility: 10.0 miles
  • Dew Point: 72°
  • Pressure: 29.98 in. -
  • Heat Index: 100

Select a Section

Click a section below for more information.

Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
93°
90°
86°
81°
79°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 95 °
  • Low: 77 °
  • Chance of T-Storms
  • Thursday
  • Partly Cloudy
  • High: 97 °
  • Low: 75 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 95 °
  • Low: 73 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 95 °
  • Low: 73 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 97 °
  • Low: 73 °
  • Partly Cloudy

Forecast for Katy, Texas

Updated: 10:00 AM CDT on August 19, 2014

  • Wednesday

    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 SSE at 5 to 15 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 77F. Winds from the SSE at 5 to 15 mph.

  • Thursday

    Partly cloudy. High of 97F. Winds from the SSE at 5 to 15 mph.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 75F. Winds from the SSE at 5 to 15 mph.

  • Friday

    Partly cloudy. High of 95F. Winds from the SSE at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 73F. Winds from the South at 5 to 15 mph.

  • Saturday

    Partly cloudy. Fog early. High of 95F. Winds from the SSE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 73F. Winds from the SSE at 5 to 15 mph.

  • Sunday

    Clear. High of 97F. Winds from the SE at 5 to 10 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 73F. Winds from the SSE at 5 to 15 mph.

  • Monday

    Partly cloudy. High of 95F. Winds from the ESE at 5 to 10 mph.

  • Monday Night

    Clear. Low of 73F. Winds from the SSE at 5 to 15 mph.

  • Tuesday

    Clear with a chance of a thunderstorm. High of 95F. Winds from the SSE at 5 to 10 mph. Chance of rain 30%.

  • Tuesday Night

    Clear. Low of 73F. Winds from the ESE at 5 to 15 mph.

  • Wednesday

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

  • Wednesday Night

    Clear. Fog overnight. Low of 72F. Winds less than 5 mph.

  • Thursday

    Clear. High of 95F. Winds from the NNE at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 72F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 95F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 72F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Special Statement  Statement as of 4:39 am CDT on August 20, 2014


... High heat index values across southeast Texas this afternoon...

The combination of warm temperatures and high dew points will produce
afternoon heat index values of 100 and 110 degrees this afternoon
across much of southeast Texas. The hottest conditions are
expected mainly between 1 PM and 6 PM CDT.

Take extra precautions if you work or spend time outside. If possible...
slow down... reduce... or reschedule strenuous outdoor activities until
the coolest part of the day. Wear light weight... loose fitting... and
light colored clothing to reflect heat and sunlight. Drink plenty of
water. Avoid any alcoholic and caffeinated beverages.

Young children... disabled adults and pets should never be left unattended
in vehicles under any circumstances. Car interiors on hot Summer days
can reach lethal temperatures in a matter of minutes.



 Local Storm Report 



08/19/2014 0131 PM

1 miles N of morgan's Point, Harris County.

Marine tstm wind e46 mph, reported by Coast Guard.


            Estimated thunderstorm gust to 40 knots near Baytown.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Waterstone, Katy, TX

Updated: 1:21 PM CDT

Temperature: 94.8 °F Dew Point: 77 °F Humidity: 56% Wind: West at 4.2 mph Pressure: 29.65 in Hourly Precipitation: - Heat Index: 109 °F Graphs

Location: Waterstone - West, Katy, TX

Updated: 1:30 PM CDT

Temperature: 93.9 °F Dew Point: 83 °F Humidity: 71% Wind: South at 2.7 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 120 °F Graphs

Location: Westlake Forest, Houston, TX

Updated: 1:17 PM CDT

Temperature: 96.3 °F Dew Point: 78 °F Humidity: 55% Wind: South at 8.3 mph Pressure: 29.80 in Hourly Precipitation: - Heat Index: 113 °F Graphs

Location: Deerfield Village, Houston, TX

Updated: 1:21 PM CDT

Temperature: 95.5 °F Dew Point: 77 °F Humidity: 56% Wind: NNE at 3.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 111 °F Graphs

Location: Nottingham Country, Katy, TX

Updated: 1:30 PM CDT

Temperature: 85.8 °F Dew Point: 73 °F Humidity: 65% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Nottingham Country Section 4, Katy, TX

Updated: 1:30 PM CDT

Temperature: 84.4 °F Dew Point: 73 °F Humidity: 68% Wind: Calm Pressure: 29.95 in Hourly Precipitation: - Heat Index: 91 °F Graphs

Location: Dave's Corner, Katy, TX

Updated: 1:30 PM CDT

Temperature: 88.5 °F Dew Point: 72 °F Humidity: 58% Wind: East at 3.1 mph Pressure: 30.77 in Hourly Precipitation: 0.04 in Heat Index: 95 °F Graphs

Location: Canyon Lakes West, Cypress, TX

Updated: 12:30 PM MDT

Temperature: 95.8 °F Dew Point: 76 °F Humidity: 54% Wind: NNW at 3.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 110 °F Graphs

Location: Cimarron, Katy, TX

Updated: 1:28 PM CDT

Temperature: 94.2 °F Dew Point: 75 °F Humidity: 54% Wind: ESE at 4.2 mph Pressure: 29.87 in Hourly Precipitation: - Heat Index: 106 °F Graphs

Location: Westminster Landing, Houston, TX

Updated: 1:30 PM CDT

Temperature: 92.0 °F Dew Point: 70 °F Humidity: 49% Wind: SSE at 9.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Westglen/Bear Creek, Houston, TX

Updated: 1:30 PM CDT

Temperature: 90.0 °F Dew Point: 66 °F Humidity: 46% Wind: South at 28.2 mph Pressure: 30.02 in Hourly Precipitation: 0.01 in Heat Index: 93 °F Graphs

Location: Windsor Park Estates, Houston, TX

Updated: 12:07 PM CDT

Temperature: 94.5 °F Dew Point: 80 °F Humidity: 62% Wind: SE at 2.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 113 °F Graphs

Location: Nottingham Country Section 8, Katy, TX

Updated: 1:30 PM CDT

Temperature: 84.9 °F Dew Point: 75 °F Humidity: 72% Wind: SSE at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Canyon Lakes West, Cypress, TX

Updated: 1:30 PM CDT

Temperature: 95.9 °F Dew Point: 74 °F Humidity: 50% Wind: South at 8.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Kelliwood, Katy, TX

Updated: 1:30 PM CDT

Temperature: 84.9 °F Dew Point: 74 °F Humidity: 70% Wind: North at - Pressure: 29.97 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: Creekstone, Katy, TX

Updated: 1:30 PM CDT

Temperature: 91.4 °F Dew Point: 56 °F Humidity: 31% Wind: SSE at 2.7 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Sommerall, Houston, TX

Updated: 1:30 PM CDT

Temperature: 94.9 °F Dew Point: 76 °F Humidity: 54% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

Location: Cinco Ranch Meadow Green, Katy, TX

Updated: 1:19 PM CDT

Temperature: 93.4 °F Dew Point: 76 °F Humidity: 57% Wind: SE at 5.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Heritage Towne Lake, Cypress, TX

Updated: 1:30 PM CDT

Temperature: 95.2 °F Dew Point: 75 °F Humidity: 52% Wind: SSE at 3.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Southcreek, Copperfield, Houston, TX

Updated: 1:30 PM CDT

Temperature: 93.9 °F Dew Point: 79 °F Humidity: 62% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 112 °F Graphs

Location: Falcon Landing, Katy, TX

Updated: 1:26 PM CDT

Temperature: 91.5 °F Dew Point: 76 °F Humidity: 61% Wind: South at 2.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 104 °F Graphs

Location: Copperfield - Copper Lakes - ManorSide, Houston, TX

Updated: 1:30 PM CDT

Temperature: 98.9 °F Dew Point: 77 °F Humidity: 50% Wind: SE at 1.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 115 °F Graphs

Location: Copperfield - Copper Lakes - Waterford, Houston, TX

Updated: 1:30 PM CDT

Temperature: 95.4 °F Dew Point: 79 °F Humidity: 59% Wind: SSW at 6.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 113 °F Graphs

Location: Concord Colony - K5EBQ, Houston, TX

Updated: 1:27 PM CDT

Temperature: 93.6 °F Dew Point: 76 °F Humidity: 56% Wind: SW at 7.0 mph Pressure: 29.98 in Hourly Precipitation: - Heat Index: 106 °F Graphs

Location: Lake Pointe Estates, Katy, TX

Updated: 1:20 PM CDT

Temperature: 93.2 °F Dew Point: 78 °F Humidity: 62% Wind: South at 7.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

Location: Copper Village, Houston, TX

Updated: 1:30 PM CDT

Temperature: 94.1 °F Dew Point: 77 °F Humidity: 58% Wind: South at 13.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

Location: Falcon Ranch, Katy, TX

Updated: 1:30 PM CDT

Temperature: 94.3 °F Dew Point: 74 °F Humidity: 52% Wind: SW at 2.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Middlegate Village, Houston, TX

Updated: 1:30 PM CDT

Temperature: 96.4 °F Dew Point: 75 °F Humidity: 51% Wind: WSW at 2.7 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

Location: Cinco Forest, Katy, TX

Updated: 1:30 PM CDT

Temperature: 91.3 °F Dew Point: 79 °F Humidity: 67% Wind: East at 5.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

Location: Arbor At Willow Fork, Katy, TX

Updated: 1:25 PM CDT

Temperature: 92.9 °F Dew Point: 76 °F Humidity: 59% Wind: SSE at 6.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: American Shooting Centers, Houston, TX

Updated: 1:28 PM CDT

Temperature: 80.5 °F Dew Point: 75 °F Humidity: 83% Wind: WNW at 4.0 mph Pressure: 30.06 in Hourly Precipitation: 0.18 in Heat Index: 86 °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 
1244 PM CDT Wednesday Aug 20 2014 


Discussion... 
18z taf discussion in aviation section. 


&& 


Aviation... 
overall main aviation weather concern will be convection today 
mainly for inland terminals. GOES sounder precipitation water data shows 
higher moisture pushing into southeast Texas so expect thunderstorms and rain to develop next 
hour or two with more heating. Convection should end with loss of 
heating. NAM/GFS suggest lower precipitable water values tomorrow so may not see 
as much convection. 


Kcll/kuts/kcxo...rapid refresh/WRF models showing convection this 
afternoon around 20z for these areas although storms just east of 
kcxo at this time. Started thunderstorms in the vicinity for kcxo to start taf with thunderstorms in the vicinity at 
uts/cll later at 20z. Should have VFR ceilings tonight with maybe 
patchy fog at kcxo like this morning. 


Kiah/khou/ksgr...khou already had one round of convection so not 
sure how much stabilization occurred. Still looks like thunderstorms and rain 
developing next few hours as heating increases. Hrrr/WRF hit this 
afternoon hard with covnection as scattered thunderstorms and rain but will hold off on 
any tempo groups for thunderstorms and rain as atmosphere seems to be lagging with 
convective development compared to models. Look for ammendments to 
tafs should thunderstorms and rain affect terminals. Otherwise look for VFR again 
tonight with low stratocu developing in the morning. With lower 
moisture levels expected tomorrow left out mention of convection 
in kiah 30 hour taf. 


Kgls/klbx...timing convection will be tricky. Not sure if there 
will be much of a sea breeze given stronger onshore flow. 
Convection still out in the Gulf which could move inland with 
higher moisture surge. Will leave out mention of convection but 
will need to monitor should anything move off the Gulf. Still look 
for VFR tonight with low stratocu clouds in the morning. 


39 


&& 


Previous discussion... /issued 1108 am CDT Wednesday Aug 20 2014/ 


Discussion... 
development starting to spread over inland areas at this time but so far 
coverage not quite as pronounced today as it was yesterday. Deep- 
er moisture offshore appears to be moving in a little tad slower 
than previously thought. However still thinking that forecast area will see 
scattered/numerous convection this afternoon/early evening so no real change to 
going forecast with this update. 41 






Preliminary point temps/pops... 
College Station (cll) 77 98 77 98 77 / 10 10 10 0 0 
Houston (iah) 78 96 77 98 77 / 10 10 10 10 0 
Galveston (gls) 84 92 83 92 83 / 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...none. 
&& 


$$ 


Discussion...41 
aviation/marine...39 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.