Katy, 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

  • 68°
  • Mostly Cloudy
  • Wind: ENE 4 mph
  • Humidity: 83%
  • Visibility: 9.0 miles
  • Dew Point: 63°
  • Pressure: 30.06 in. -

Select a Section

Click a section below for more information.

Next 12 Hours

12  pm
3  pm
6  pm
9  pm
12  am
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
68°
66°
63°
63°
59°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Thunderstorm
  • High: 70 °
  • Low: 59 °
  • T-Storms
  • Friday
  • Thunderstorm
  • High: 64 °
  • Low: 46 °
  • T-Storms
  • Saturday
  • Mostly Cloudy
  • High: 61 °
  • Low: 45 °
  • Mostly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 64 °
  • Low: 45 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 68 °
  • Low: 50 °
  • Partly Cloudy

Forecast for Katy, Texas

Updated: 9:00 AM CST on December 18, 2014

  • Thursday

    Overcast with thunderstorms and rain showers, then thunderstorms and a chance of rain in the afternoon. High of 70F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.

  • Thursday Night

    Overcast with thunderstorms and rain showers. Low of 59F. Winds from the NE at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 1.5 in. possible.

  • Friday

    Overcast with thunderstorms and rain showers. High of 64F. Winds from the NNE at 5 to 15 mph. Chance of rain 80% with rainfall amounts near 0.9 in. possible.

  • Friday Night

    Mostly cloudy in the evening, then overcast. Low of 46F. Winds from the NNW at 10 to 15 mph.

  • Saturday

    Overcast in the morning, then mostly cloudy. High of 61F. Winds from the North at 5 to 15 mph.

  • Saturday Night

    Mostly cloudy in the evening, then overcast. Fog overnight. Low of 45F. Winds from the NE at 5 to 10 mph.

  • Sunday

    Overcast in the morning, then mostly cloudy. Fog early. High of 64F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy. Fog overnight. Low of 45F. Winds less than 5 mph.

  • Monday

    Partly cloudy. Fog early. High of 68F. Winds from the SW at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 50F. Winds from the SSW at 10 to 15 mph.

  • Tuesday

    Clear. High of 66F. Winds from the NW at 5 to 20 mph.

  • Tuesday Night

    Clear. Low of 41F. Winds from the NNW at 5 to 15 mph.

  • Wednesday

    Clear. High of 64F. Winds from the NNE at 5 to 10 mph shifting to the ESE in the afternoon.

  • Wednesday Night

    Clear. Fog overnight. Low of 41F. Winds from the SE at 5 to 10 mph.

  • Thursday

    Overcast. Fog early. High of 68F. Winds from the SSE at 10 to 15 mph.

  • Thursday Night

    Overcast with a chance of rain. Fog overnight. Low of 59F. Winds from the South at 5 to 15 mph. Chance of rain 20%.

  • Friday

    Overcast with a chance of rain. Fog early. High of 70F. Winds less than 5 mph. Chance of rain 20%.

  • Friday Night

    Overcast with a chance of rain. Fog overnight. Low of 50F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday

    Mostly cloudy. High of 64F. Winds from the NNE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 48F. Winds from the NNE at 5 to 10 mph.

  • Sunday

    Clear. High of 55F. Winds from the NNE at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 48F. Winds from the NNE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Waterstone, Katy, TX

Updated: 1:18 PM CST

Temperature: 70.3 °F Dew Point: 66 °F Humidity: 85% Wind: ENE at 2.2 mph Pressure: 29.72 in Hourly Precipitation: - Heat Index: - Graphs

Location: Waterstone - West, Katy, TX

Updated: 1:24 PM CST

Temperature: 72.0 °F Dew Point: 64 °F Humidity: 77% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Westlake Forest, Houston, TX

Updated: 1:24 PM CST

Temperature: 70.3 °F Dew Point: 63 °F Humidity: 78% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Barker-Cypress, Houston, TX

Updated: 1:14 PM CST

Temperature: 69.6 °F Dew Point: 63 °F Humidity: 80% Wind: NNE at 2.2 mph Pressure: 29.78 in Hourly Precipitation: - Heat Index: - Graphs

Location: Deerfield Village, Houston, TX

Updated: 1:10 PM CST

Temperature: 69.0 °F Dew Point: 63 °F Humidity: 82% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Nottingham Country, Katy, TX

Updated: 1:24 PM CST

Temperature: 72.1 °F Dew Point: 65 °F Humidity: 79% Wind: East at 1.3 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Lakes Of Pine Forest, Houston, TX

Updated: 1:20 PM CST

Temperature: 68.7 °F Dew Point: 65 °F Humidity: 88% Wind: North at - Pressure: 30.14 in Hourly Precipitation: - Heat Index: - Graphs

Location: Nottingham Country Section 4, Katy, TX

Updated: 1:24 PM CST

Temperature: 72.3 °F Dew Point: 59 °F Humidity: 62% Wind: Calm Pressure: 30.00 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Canyon Lakes West, Cypress, TX

Updated: 12:24 PM MST

Temperature: 71.2 °F Dew Point: 65 °F Humidity: 81% Wind: South at 1.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Cimarron, Katy, TX

Updated: 1:10 PM CST

Temperature: 69.0 °F Dew Point: 64 °F Humidity: 84% Wind: SSE at 1.7 mph Pressure: 29.97 in Hourly Precipitation: - Heat Index: - Graphs

Location: Westminster Landing, Houston, TX

Updated: 1:20 PM CST

Temperature: 69.3 °F Dew Point: 64 °F Humidity: 84% Wind: NNE at 1.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Westglen/Bear Creek, Houston, TX

Updated: 1:24 PM CST

Temperature: 72.7 °F Dew Point: 66 °F Humidity: 80% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Windsor Park Estates, Houston, TX

Updated: 1:22 PM CST

Temperature: 69.2 °F Dew Point: 66 °F Humidity: 88% Wind: NW at 1.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Nottingham Country Section 8, Katy, TX

Updated: 1:24 PM CST

Temperature: 69.3 °F Dew Point: 65 °F Humidity: 86% Wind: ESE at 2.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Canyon Lakes West, Cypress, TX

Updated: 1:24 PM CST

Temperature: 72.6 °F Dew Point: 66 °F Humidity: 80% Wind: East at 2.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Creekstone, Katy, TX

Updated: 1:23 PM CST

Temperature: 68.4 °F Dew Point: 58 °F Humidity: 70% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cinco Ranch, Katy, TX

Updated: 1:21 PM CST

Temperature: 69.3 °F Dew Point: 65 °F Humidity: 86% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Sommerall, Houston, TX

Updated: 1:24 PM CST

Temperature: 69.7 °F Dew Point: 63 °F Humidity: 80% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cinco Ranch Meadow Green, Katy, TX

Updated: 1:15 PM CST

Temperature: 70.2 °F Dew Point: 66 °F Humidity: 87% Wind: NE at 1.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Heritage Towne Lake, Cypress, TX

Updated: 1:24 PM CST

Temperature: 70.3 °F Dew Point: 64 °F Humidity: 80% Wind: ESE at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Southcreek, Copperfield, Houston, TX

Updated: 1:20 PM CST

Temperature: 71.3 °F Dew Point: 64 °F Humidity: 79% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Falcon Landing, Katy, TX

Updated: 1:19 PM CST

Temperature: 67.8 °F Dew Point: 64 °F Humidity: 88% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 1:24 PM CST

Temperature: 71.7 °F Dew Point: 65 °F Humidity: 79% Wind: ENE at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

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

Updated: 1:24 PM CST

Temperature: 69.9 °F Dew Point: 65 °F Humidity: 85% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cinco Ranch Equestrian Village, Katy, TX

Updated: 1:19 PM CST

Temperature: 72.1 °F Dew Point: 66 °F Humidity: 81% Wind: North at 2.2 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Concord Colony - K5EBQ, Houston, TX

Updated: 1:18 PM CST

Temperature: 70.4 °F Dew Point: 65 °F Humidity: 83% Wind: Calm Pressure: 30.04 in Hourly Precipitation: - Heat Index: 70 °F Graphs

Location: Lake Pointe Estates, Katy, TX

Updated: 1:22 PM CST

Temperature: 69.3 °F Dew Point: 66 °F Humidity: 89% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Copper Village, Houston, TX

Updated: 1:24 PM CST

Temperature: 69.7 °F Dew Point: 64 °F Humidity: 82% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Falcon Ranch, Katy, TX

Updated: 1:20 PM CST

Temperature: 68.3 °F Dew Point: 65 °F Humidity: 90% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Houston/Galveston Texas 
1152 am CST Thursday Dec 18 2014 


Discussion... 
see the 18z aviation discussion below. 


40 


&& 


Aviation... 
the stationary/slow moving warm front was located right along the 
Upper Texas coast at 17z. The latest high resolution models keep 
the front along the coast through the afternoon. However...an 
analysis of the last few hours of the surface observations shows a 
weak surface low forming in far south Texas. If this system can 
stay together and move up the coast...the warm front may move a 
bit further inland. For now...like the scenario for the frontal 
boundary to stay near or just inland of the coast this afternoon 
and evening. As an upper level shortwave trough moves across the 
state on Friday morning...the frontal boundary will then move off 
the coast and northerly winds should affect most of the sites. 
Confidence levels in the forecast is medium given the various 
scenarios. 


The impacts will likely be IFR to LIFR conditions through tonight. 
MVFR ceilings should develop for at least a few hours this 
afternoon over most of the sites. However...IFR to LIFR will 
develop around or shortly after 00z. Given the very moist airmass 
moving over the cool Gulf waters near the coast...sea fog may 
become an issue over at least kgls...klbx...and khou between 03z 
and 06z. If the fog develops...there is a chance these conditions 
will linger through Friday morning. Isolated thunderstorms will be 
possible Friday morning as the shortwave trough moves overhead. 


40 


&& 


Previous discussion... /issued 907 am CST Thursday Dec 18 2014/ 


Discussion... 
for the update...trimmed probability of precipitation/quantitative precipitation forecast across northern parts of southeast Texas 
for the rest of the day based on latest obs/trends/guidance. Think 
bulk of precipitation will be situated closer to the coast where warm 
front should be situated. Still expect coverage to rapidly expand 
overnight with upper impulse approaching from the west. 47 


&& 


Preliminary point temps/pops... 
College Station (cll) 64 52 55 46 58 / 10 90 80 10 0 
Houston (iah) 69 57 62 46 60 / 40 80 80 20 10 
Galveston (gls) 69 61 66 50 58 / 60 80 80 20 10 


&& 


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


$$ 


Discussion...47 
aviation/marine...40 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.