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Katy TX Weather - Thunder - 88°F
Thunder
88°F
Updated 4:35 pm
Feels Like 86°F
Humidity 63%
Wind ENE 13 mph
Barometer  30.01 in
Dew Point 74°F
Katy TX Weather - Thunder - 31°C
Thunder
31°C
Updated 4:35 pm
Feels Like 30°C
Humidity 63%
Wind ENE 21 km/h
Barometer  101.6 kPa
Dew Point 23°C
Katy, TX Weather and Current Conditionskaty tx weather forecast

Katy, TX Weather Forecast

Katy Texas WeatherKaty, Texas Weather Weather Forecast
14 day API Katy, TX weather forecast. Note. Our 7-day weather forecast for Katy, Texas is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Katy, TX Weather Forecast Dated: 435 PM Tue Sep 08 2026
Expect a hot stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate. A few thunderstorms possible.

Tuesday, September 8, 2026

Mid-Morning
Katy Weather - 2026-09-08 - Morning - Sunny
83°F 28°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-08 - Afternoon - Scattered Showers
87°F 30°C
Scattered Showers
Early-Evening
Katy Weather - 2026-09-08 - Evening - Light Rain
79°F 26°C
Light Rain
Warm and summery around 87°F 30°C (feels like 97°F 36°C), periods of heavy rain and gusty conditions, with steady humidity and steady pressure. A stray shower or storm late in the day. Winds turning from the S to the SE at 10 mph 15 km/h.

Wednesday, September 9, 2026

Mid-Morning
Katy Weather - 2026-09-09 - Morning - Sunny
83°F 29°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-09 - Afternoon - Overcast
95°F 35°C
Overcast
Early-Evening
Katy Weather - 2026-09-09 - Evening - Nearby Thunderstorms
87°F 31°C
Nearby Thunderstorms
Hot and sweltering around 95°F 35°C (heat index 102°F 39°C), locally heavy thunderstorms at times, with lower humidity and barometric pressure falling. Winds switching from the SSE to the SE at 9 mph 15 km/h.

Thursday, September 10, 2026

Mid-Morning
Katy Weather - 2026-09-10 - Morning - Partly Cloudy
82°F 28°C
Partly Cloudy
Mid-Afternoon
Katy Weather - 2026-09-10 - Afternoon - Cloudy
96°F 35°C
Cloudy
Early-Evening
Katy Weather - 2026-09-10 - Evening - Scattered Showers
90°F 32°C
Scattered Showers
Very hot with a high of 96°F 35°C, feeling closer to 101°F 38°C in the humidity, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds moving from the S to the SSE at 10 mph 16 km/h.

Friday, September 11, 2026

Mid-Morning
Katy Weather - 2026-09-11 - Morning - Nearby Thunderstorms
82°F 28°C
Nearby Thunderstorms
Mid-Afternoon
Katy Weather - 2026-09-11 - Afternoon - Nearby Thunderstorms
97°F 36°C
Nearby Thunderstorms
Early-Evening
Katy Weather - 2026-09-11 - Evening - Nearby Thunderstorms
85°F 29°C
Nearby Thunderstorms
Sizzling hot near 97°F 36°C with a heat index reaching 105°F 40°C, periods of heavy thunderstorms, with lower humidity and steady pressure. A stray shower or storm late in the day. Winds swinging from the SSW to the S at 10 mph 15 km/h.

Saturday, September 12, 2026

Mid-Morning
Katy Weather - 2026-09-12 - Morning - Nearby Thunderstorms
79°F 26°C
Nearby Thunderstorms
Mid-Afternoon
Katy Weather - 2026-09-12 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Katy Weather - 2026-09-12 - Evening - Overcast
88°F 31°C
Overcast
Quite warm reaching 83°F 28°C, feeling like 90°F 32°C during peak afternoon, locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds building from SSW at 5 mph 8 km/h to SSE at 13 mph 21 km/h. Gusts up to 23 mph 36 km/h.

Sunday, September 13, 2026

Mid-Morning
Katy Weather - 2026-09-13 - Morning - Cloudy
84°F 29°C
Cloudy
Mid-Afternoon
Katy Weather - 2026-09-13 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Katy Weather - 2026-09-13 - Evening - Sunny
89°F 32°C
Sunny
Very hot with a high of 98°F 37°C, feeling closer to 105°F 40°C in the humidity, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the SSE to the SE at 14 mph 22 km/h.

Monday, September 14, 2026

Mid-Morning
Katy Weather - 2026-09-14 - Morning - Sunny
85°F 29°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-14 - Afternoon - Sunny
99°F 37°C
Sunny
Early-Evening
Katy Weather - 2026-09-14 - Evening - Partly Cloudy
89°F 32°C
Partly Cloudy
Sizzling hot near 99°F 37°C with a heat index reaching 105°F 40°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the SSE to the SE at 13 mph 22 km/h.

Tuesday, September 15, 2026

Mid-Morning
Katy Weather - 2026-09-15 - Morning - Sunny
85°F 29°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-15 - Afternoon - Scattered Showers
92°F 33°C
Scattered Showers
Early-Evening
Katy Weather - 2026-09-15 - Evening - Overcast
87°F 31°C
Overcast
Hot and sweltering around 92°F 33°C (heat index 99°F 37°C), scattered downpours possible, with lower humidity and steady pressure. Winds moving from the SSE to the SE at 13 mph 21 km/h.

Wednesday, September 16, 2026

Mid-Morning
Katy Weather - 2026-09-16 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-16 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Katy Weather - 2026-09-16 - Evening - Overcast
89°F 32°C
Overcast
Very hot with a high of 98°F 37°C, feeling closer to 102°F 39°C in the humidity, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the SSE to the SE at 13 mph 21 km/h.

Thursday, September 17, 2026

Mid-Morning
Katy Weather - 2026-09-17 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-17 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Katy Weather - 2026-09-17 - Evening - Sunny
89°F 32°C
Sunny
Sizzling hot near 97°F 36°C with a heat index reaching 100°F 38°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds out of the ESE at 11 mph 17 km/h.

Friday, September 18, 2026

Mid-Morning
Katy Weather - 2026-09-18 - Morning - Overcast
85°F 29°C
Overcast
Mid-Afternoon
Katy Weather - 2026-09-18 - Afternoon - Scattered Showers
89°F 32°C
Scattered Showers
Early-Evening
Katy Weather - 2026-09-18 - Evening - Scattered Showers
83°F 28°C
Scattered Showers
Quite warm reaching 89°F 32°C, feeling like 95°F 35°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the E to the SE at 8 mph 12 km/h.

Saturday, September 19, 2026

Mid-Morning
Katy Weather - 2026-09-19 - Morning - Partly Cloudy
83°F 28°C
Partly Cloudy
Mid-Afternoon
Katy Weather - 2026-09-19 - Afternoon - Partly Cloudy
91°F 33°C
Partly Cloudy
Early-Evening
Katy Weather - 2026-09-19 - Evening - Scattered Showers
86°F 30°C
Scattered Showers
Very hot with a high of 91°F 33°C, feeling closer to 98°F 36°C in the humidity, locally heavy downpours at times, with lower humidity and steady pressure. Winds switching from the SSE to the SE at 11 mph 17 km/h.

Sunday, September 20, 2026

Mid-Morning
Katy Weather - 2026-09-20 - Morning - Cloudy
73°F 23°C
Cloudy
Mid-Afternoon
Katy Weather - 2026-09-20 - Afternoon - Cloudy
85°F 30°C
Cloudy
Early-Evening
Katy Weather - 2026-09-20 - Evening - Overcast
79°F 26°C
Overcast
Warm and summery around 85°F 30°C (feels like 89°F 32°C), partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds moving from the SE to the ESE at 10 mph 17 km/h.

Monday, September 21, 2026

Mid-Morning
Katy Weather - 2026-09-21 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Katy Weather - 2026-09-21 - Afternoon - Cloudy
90°F 32°C
Cloudy
Early-Evening
Katy Weather - 2026-09-21 - Evening - Cloudy
85°F 30°C
Cloudy
Hot and sweltering around 90°F 32°C (heat index 94°F 34°C), sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.

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Weather by the Numbers

Tue, 8th
Katy TX Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 95°F 35°C
Lo: 78°F 26°C
Sunrise 07:04 AM
Sunset 07:37 PM
Wind ESE 2 mph3 km/h
Dew Point 76°F24°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 3% *
Humidity 56%
Wed, 9th
Katy TX Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 95°F 35°C
Lo: 79°F 26°C
Sunrise 07:05 AM
Sunset 07:36 PM
Wind ESE 4 mph7 km/h
Dew Point 71°F21°C
uv Index 8
Barometric Pressure 30.09 in1019 mb
POP 12% *
Humidity 50%
Thu, 10th
Katy TX Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 96°F 36°C
Lo: 78°F 25°C
Sunrise 07:05 AM
Sunset 07:35 PM
Wind SSW 7 mph12 km/h
Dew Point 70°F21°C
uv Index 8
Barometric Pressure 30 in1016 mb
POP 2% *
Humidity 48%
Fri, 11th
Katy TX Weather - Friday, Sep 11, 2026 - Thundery Outbreaks In Nearby
Hi: 97°F 36°C
Lo: 77°F 25°C
Sunrise 07:06 AM
Sunset 07:34 PM
Wind SSW 7 mph11 km/h
Dew Point 72°F22°C
uv Index 8
Barometric Pressure 29.91 in1013 mb
POP 4% *
Humidity 53%
Sat, 12th
Katy TX Weather - Saturday, Sep 12, 2026 - Light Rain Shower
Hi: 95°F 35°C
Lo: 78°F 25°C
Sunrise 07:06 AM
Sunset 07:32 PM
Wind SSE 10 mph16 km/h
Dew Point 72°F22°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 57% *
Humidity 53%
Sun, 13th
Katy TX Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 98°F 37°C
Lo: 78°F 26°C
Sunrise 07:07 AM
Sunset 07:31 PM
Wind SSE 8 mph13 km/h
Dew Point 71°F22°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 49%
Mon, 14th
Katy TX Weather - Monday, Sep 14, 2026 - Sunny
Hi: 100°F 38°C
Lo: 79°F 26°C
Sunrise 07:08 AM
Sunset 07:30 PM
Wind SSE 9 mph14 km/h
Dew Point 69°F21°C
uv Index 8
Barometric Pressure 30 in1016 mb
POP 2% *
Humidity 47%
Tue, 15th
Katy TX Weather - Tuesday, Sep 15, 2026 - Patchy Rain Nearby
Hi: 97°F 36°C
Lo: 79°F 26°C
Sunrise 07:08 AM
Sunset 07:29 PM
Wind SSE 8 mph13 km/h
Dew Point 70°F21°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 9% *
Humidity 48%
Wed, 16th
Katy TX Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 99°F 37°C
Lo: 78°F 26°C
Sunrise 07:09 AM
Sunset 07:27 PM
Wind SE 8 mph12 km/h
Dew Point 67°F19°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 44%
Thu, 17th
Katy TX Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 98°F 37°C
Lo: 76°F 24°C
Sunrise 07:09 AM
Sunset 07:26 PM
Wind ESE 7 mph11 km/h
Dew Point 66°F19°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 43%
Fri, 18th
Katy TX Weather - Friday, Sep 18, 2026 - Sunny
Hi: 93°F 34°C
Lo: 79°F 26°C
Sunrise 07:10 AM
Sunset 07:25 PM
Wind E 8 mph13 km/h
Dew Point 69°F21°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 49%
Sat, 19th
Katy TX Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 94°F 35°C
Lo: 77°F 25°C
Sunrise 07:10 AM
Sunset 07:24 PM
Wind SSE 6 mph9 km/h
Dew Point 70°F21°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 50%
Sun, 20th
Katy TX Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 86°F 30°C
Lo: 70°F 21°C
Sunrise 07:11 AM
Sunset 07:22 PM
Wind N 10 mph16 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 8% *
Humidity 64%
Mon, 21st
Katy TX Weather - Monday, Sep 21, 2026 - Sunny
Hi: 91°F 33°C
Lo: 72°F 22°C
Sunrise 07:11 AM
Sunset 07:21 PM
Wind NNE 6 mph9 km/h
Dew Point 67°F19°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 6% *
Humidity 56%
* POP = Probability of Precipitation. Data for 12:00 PM.