Irving TX
08/21/2026 03:00 PM
104°F
TEMPERATURE
Winds 5 mph SSE
Sunny
Mostly sunny, with a high near 105. Heat index values as high as 108. South southeast wind around 5 mph.

Alerts

You have (2) alert(s). Tap to see details.

Extreme Heat Warning

Severe
Extreme Heat Warning issued August 21 at 12:51PM CDT until August 22 at 8:00PM CDT by NWS Fort Worth TX
NWS Fort Worth TX
Category Certainty Severity
Met Likely Severe
Status Urgency Category
Actual Expected Met
Effective Ends Expires
08/21/2026 12:51 PM 08/22/2026 08:00 PM 08/22/2026 01:15 AM 
* WHAT...Dangerously hot conditions with heat index values up to 109.

* WHERE...A portion of north central Texas.

* WHEN...Until 8 PM CDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

Air Quality Alert

Unknown
Air Quality Alert issued August 20 at 3:36PM CDT by NWS Fort Worth TX
NWS Fort Worth TX
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
08/20/2026 03:36 PM 08/21/2026 03:51 PM 08/21/2026 06:45 PM 
AQAFWD

The Texas Commission on Environmental Quality (TCEQ) has issued
an Ozone Action Day for the Dallas-Fort Worth area for Friday,
August 21, 2026.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Friday. You can help prevent ozone pollution by sharing a
ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive-through lanes, conserving energy, and keeping your
vehicle properly tuned.

For more information on ozone:

Ozone: The Facts (www.tceq.texas.gov/goto/ozonefacts)

Air North Texas: (www.airnorthtexas.org)

EPA Air Now
(www.airnow.gov/index.cfm?action.local_state&STATEID=45&TAB=0)

Take care of Texas (www.takecareoftexas.org)

North Central Texas Council of Governments Air Quality
(www.nctcog.org/trans/air/index.asp)
Moonrise
04:50 PM
Moonset
01:40 AM
Sunrise
06:54 AM
Moon Phase
Waxing gibbous
Sunset
08:06 PM

Hourly Forecast

Fri, 03:00 PM

Sunny
Winds: 5 mph SSE
104°

Fri, 04:00 PM

Mostly Sunny
Winds: 5 mph S
105°

Fri, 05:00 PM

Mostly Sunny
Winds: 5 mph S
104°

Fri, 06:00 PM

Mostly Clear
Winds: 5 mph SSE
104°

Fri, 07:00 PM

Mostly Clear
Winds: 10 mph SSE
102°

Fri, 08:00 PM

Mostly Clear
Winds: 10 mph SSE
99°

Fri, 09:00 PM

Mostly Clear
Winds: 10 mph SSE
96°

Fri, 10:00 PM

Partly Cloudy
Winds: 10 mph SSE
94°

Fri, 11:00 PM

Partly Cloudy
Winds: 5 mph SSE
92°

Sat, 12:00 AM

Mostly Clear
Winds: 5 mph SSE
91°

Sat, 01:00 AM

Partly Cloudy
Winds: 5 mph SE
89°

Sat, 02:00 AM

Mostly Cloudy
Winds: 5 mph S
88°

Sat, 03:00 AM

Mostly Cloudy
Winds: 5 mph S
87°

Sat, 04:00 AM

Mostly Cloudy
Winds: 5 mph S
86°

Sat, 05:00 AM

Mostly Cloudy
Winds: 5 mph SSE
85°

Sat, 06:00 AM

Partly Sunny
Winds: 5 mph SE
84°

Sat, 07:00 AM

Mostly Sunny
Winds: 5 mph S
83°

Sat, 08:00 AM

Mostly Sunny
Winds: 5 mph S
85°

Sat, 09:00 AM

Mostly Sunny
Winds: 5 mph SSW
87°

Sat, 10:00 AM

Mostly Sunny
Winds: 5 mph S
92°

Sat, 11:00 AM

Mostly Sunny
Winds: 5 mph SSW
96°

Sat, 12:00 PM

Mostly Sunny
Winds: 5 mph SSW
100°

Sat, 01:00 PM

Mostly Sunny
Winds: 5 mph SSW
103°

Sat, 02:00 PM

Sunny
Winds: 5 mph SW
105°

This Afternoon

Mostly Sunny
105°
Winds: 5 mph SSE
Mostly sunny, with a high near 105. Heat index values as high as 108. South southeast wind around 5 mph.

Tonight

Partly Cloudy
83°
Winds: 5 to 10 mph SSE
Partly cloudy. Low around 83, with temperatures rising to around 85 overnight. Heat index values as high as 106. South southeast wind 5 to 10 mph.

Saturday

Mostly Sunny then Slight Chance Showers And Thunderstorms
108°
Winds: 5 mph SSW
A slight chance of showers and thunderstorms after 4pm. Mostly sunny. High near 108, with temperatures falling to around 106 in the afternoon. Heat index values as high as 110. South southwest wind around 5 mph.

Saturday Night

Slight Chance Showers And Thunderstorms then Mostly Clear
83°
Winds: 5 to 10 mph S
A slight chance of showers and thunderstorms before 10pm. Mostly clear. Low around 83, with temperatures rising to around 85 overnight. Heat index values as high as 107. South wind 5 to 10 mph. Chance of precipitation is 20%.

Sunday

Sunny
107°
Winds: 5 mph SSW
Sunny, with a high near 107. South southwest wind around 5 mph.

Sunday Night

Mostly Clear
85°
Winds: 10 mph S
Mostly clear. Low around 85, with temperatures rising to around 87 overnight. South wind around 10 mph, with gusts as high as 20 mph.

Monday

Sunny
107°
Winds: 10 mph SSW
Sunny, with a high near 107. South southwest wind around 10 mph, with gusts as high as 25 mph.

Monday Night

Clear then Slight Chance Rain Showers
84°
Winds: 15 mph S
A slight chance of rain showers after 1am. Clear, with a low around 84. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Tuesday

Slight Chance Rain Showers then Sunny
107°
Winds: 10 mph SSW
A slight chance of rain showers before 7am. Sunny, with a high near 107. South southwest wind around 10 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly Clear
84°
Winds: 10 mph SSW
Mostly clear, with a low around 84.

Wednesday

Slight Chance Rain Showers
105°
Winds: 5 to 10 mph SW
A slight chance of rain showers between 7am and 1pm. Sunny, with a high near 105. Chance of precipitation is 20%.

Wednesday Night

Mostly Clear
82°
Winds: 5 mph SSE
Mostly clear, with a low around 82.

Thursday

Sunny
104°
Winds: 5 mph S
Sunny, with a high near 104.

Thursday Night

Mostly Clear
81°
Winds: 5 to 10 mph SSE
Mostly clear, with a low around 81.

Coastal Waters Forecast for Texas

National Weather Service Houston/Galveston TX

For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Light to occasionally moderate south to southwest winds and 2 to 3 foot seas are expected over the next several days. Winds may occasionally gust up to 20 knots during the afternoon in the bays, and during the overnight hours in the Gulf. Thunderstorms are expected north of the region this evening and again Saturday afternoon and evening. These storms are expected to remain to our north, but are worth watching.

Upper Texas coastal waters from High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays. Seas are provided as a range of the average height of the highest 1/3 of the waves.along with the occasional height of the average highest 10 percent of the waves.

Galveston Bay

THIS AFTERNOON
Southwest winds around 10 knots, becoming south 10 to 15 knots late Bay waters smooth, increasing to slightly choppy late
TONIGHT
Southwest winds 10 to 15 knots Bay waters slightly choppy A slight chance of showers with isolated thunderstorms
SATURDAY
West winds around 10 knots, becoming south 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
SATURDAY NIGHT
Southwest winds 10 to 15 knots Bay waters slightly choppy
SUNDAY
West winds around 10 knots, becoming south 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
SUNDAY NIGHT
Southwest winds 10 to 15 knots Bay waters slightly choppy
MONDAY
Southwest winds around 10 knots, becoming south 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
MONDAY NIGHT
South winds 10 to 15 knots Bay waters slightly choppy
TUESDAY
South winds 10 to 15 knots Bay waters slightly choppy
TUESDAY NIGHT
South winds 10 to 15 knots Bay waters slightly choppy
Reporting time 11:53 AM CDT Fri Aug 21 2026

Matagorda Bay

THIS AFTERNOON
South winds around 10 knots, increasing to 10 to 15 knots late Bay waters smooth, increasing to slightly choppy late
TONIGHT
South winds 10 to 15 knots Bay waters slightly choppy
SATURDAY
Southwest winds around 10 knots, becoming south 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
SATURDAY NIGHT
South winds 10 to 15 knots Bay waters slightly choppy
SUNDAY
Southwest winds around 10 knots, becoming south 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
SUNDAY NIGHT
South winds 10 to 15 knots Bay waters slightly choppy
MONDAY
Southwest winds around 10 knots, becoming south 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
MONDAY NIGHT
South winds 10 to 15 knots Bay waters slightly choppy
TUESDAY
South winds around 10 knots, increasing to 10 to 15 knots in the afternoon Bay waters smooth, increasing to slightly choppy in the afternoon
TUESDAY NIGHT
South winds 10 to 15 knots Bay waters slightly choppy
Reporting time 11:53 AM CDT Fri Aug 21 2026

Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NMCoastal waters from High Island to Freeport TX out 20 NM

THIS AFTERNOON
Southwest winds 5 to 10 knots Seas around 2 feet Wave Detail: South 2 feet at 4 seconds
TONIGHT
Southwest winds 10 to 15 knots Seas around 2 feet Wave Detail: South 2 feet at 4 seconds
SATURDAY
West winds around 10 knots, becoming southwest 10 to 15 knots in the afternoon Seas around 2 feet Wave Detail: South 2 feet at 5 seconds
SATURDAY NIGHT
Southwest winds 10 to 15 knots Seas around 2 feet Wave Detail: South 2 feet at 5 seconds
SUNDAY
Southwest winds 5 to 10 knots Seas around 2 feet Wave Detail: South 2 feet at 5 seconds
SUNDAY NIGHT
South winds around 10 knots Seas around 2 feet Wave Detail: South 2 feet at 4 seconds
MONDAY
Southwest winds 5 to 10 knots Seas around 2 feet
MONDAY NIGHT
South winds 10 to 15 knots Seas 2 to 3 feet
TUESDAY
Southwest winds 10 to 15 knots, becoming south around 10 knots in the afternoon Seas 2 to 3 feet
TUESDAY NIGHT
South winds 10 to 15 knots Seas 2 to 3 feet
Reporting time 11:53 AM CDT Fri Aug 21 2026

Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NMWaters from High Island to Freeport TX from 20 to 60 NM

THIS AFTERNOON
Southwest winds 5 to 10 knots Seas around 2 feet Wave Detail: South 2 feet at 4 seconds and southeast 1 foot at 7 seconds
TONIGHT
South winds around 10 knots Seas around 2 feet Wave Detail: South 2 feet at 4 seconds
SATURDAY
Southwest winds 5 to 10 knots Seas around 2 feet Wave Detail: South 2 feet at 5 seconds
SATURDAY NIGHT
Southwest winds 5 to 10 knots Seas around 2 feet Wave Detail: South 1 foot at 5 seconds
SUNDAY
Southwest winds 5 to 10 knots Seas around 2 feet in the morning, then 1 foot or less Wave Detail: South 1 foot at 5 seconds
SUNDAY NIGHT
South winds 5 to 10 knots Seas around 2 feet Wave Detail: South 1 foot at 5 seconds
MONDAY
South winds 5 to 10 knots Seas around 2 feet
MONDAY NIGHT
South winds 10 to 15 knots Seas 2 to 3 feet
TUESDAY
South winds 5 to 10 knots Seas 2 to 3 feet
TUESDAY NIGHT
South winds 10 to 15 knots Seas 2 to 3 feet
Reporting time 11:53 AM CDT Fri Aug 21 2026
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