Active National Weather Service alert for Wallisville, Texas 77597: Heat Advisory. Heat Advisory issued August 23 at 2:58PM CDT until August 24 at 7:00PM CDT by NWS Houston/Galveston TX Until Mon, 7:00 PM CDT.
Change

Live across America

Wallisville, Texas 77597 weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for Wallisville, Texas 77597. Always follow local warnings and emergency instructions.

Save
Weather guidance for your areaPlan with the complete forecast

Use current official weather information for Wallisville, Texas 77597 before making weather-sensitive plans.

Safety guides

Weather status

Heat Advisory

Heat Advisory issued August 23 at 2:58PM CDT until August 24 at 7:00PM CDT by NWS Houston/Galveston TX Expires Mon, 7:00 PM CDT.

Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes

Live Doppler radar

Animated Multi-Radar/Multi-Sensor reflectivity from the National Weather Service’s network of Doppler radars. Search a U.S. city, ZIP code, or street address to center the map on local weather, then zoom to neighborhood street detail.

Open full NWS Doppler radar ↗
Live radar is ready when you need it.

The interactive map stays off until opened to keep forecasts fast.

After loading, MyUSA.us shows the exact Doppler frame time, refresh controls, and an official NWS fallback if the map is unavailable.

Doppler radar and warnings: NOAA/National Weather Service · Map: OpenFreeMap, OpenMapTiles and OpenStreetMap contributors. Radar can be delayed briefly during service updates.

MyUSA.us is not affiliated with or endorsed by NOAA or the National Weather Service. For life-threatening weather, follow official NWS alerts and local authorities.

What’s next

Hourly forecast

Wallisville, Texas 77597

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Wallisville, Texas 77597. Forecasts and alerts update from NOAA and the National Weather Service.

97°Slight Chance Showers And Thunderstorms20% rain
97°Slight Chance Showers And Thunderstorms20% rain
94°Slight Chance Showers And Thunderstorms20% rain
92°Slight Chance Showers And Thunderstorms20% rain
90°Slight Chance Showers And Thunderstorms20% rain
87°Slight Chance Showers And Thunderstorms20% rain
86°Slight Chance Showers And Thunderstorms20% rain
85°Slight Chance Showers And Thunderstorms17% rain

Next 24 hours

Rain Timeline

Highest chance 20%

Scattered precipitation is possible. The highest official hourly chance is 20%; check the radar before heading out.

20%Thunderstorms
20%Thunderstorms
20%Thunderstorms
20%Thunderstorms
20%Thunderstorms
20%Thunderstorms
20%Thunderstorms
17%Thunderstorms
13%None
10%None
6%None
5%None
4%None
3%None
2%None
1%None
1%None
1%None
1%None
1%None
1%None
2%None
1%None
1%None

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
97°79°

Slight Chance Showers And Thunderstorms

Precipitation
20%
Wind
S 10 mph
Sunrise
6:52 AM
Sunset
7:53 PM

Mon

96°78°

Sunny

Precipitation
2%
Wind
SW 5 to 10 mph
Sunrise
6:52 AM
Sunset
7:52 PM

Tue

97°79°

Mostly Sunny

Precipitation
13%
Wind
SW 5 to 10 mph
Sunrise
6:53 AM
Sunset
7:51 PM

Wed

97°79°

Mostly Sunny

Precipitation
7%
Wind
SW 5 to 10 mph
Sunrise
6:53 AM
Sunset
7:50 PM

Thu

97°78°

Sunny then Slight Chance Showers And Thunderstorms

Precipitation
16%
Wind
SW 5 mph
Sunrise
6:54 AM
Sunset
7:48 PM

Fri

94°77°

Slight Chance Showers And Thunderstorms

Precipitation
23%
Wind
S 0 to 5 mph
Sunrise
6:55 AM
Sunset
7:47 PM

Sat

94°77°

Sunny then Slight Chance Showers And Thunderstorms

Precipitation
15%
Wind
S 0 to 5 mph
Sunrise
6:55 AM
Sunset
7:46 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel112°F
Walking is not recommended now

Current official weather conditions may be unsafe for this activity.

WindSE11 mph
Best walk timeBetter weather window: 3 AM–5 AM

Walking: 5% average rain chance, near 82°F, with winds near 5 mph. Review the active Heat Advisory.

Official EPA AirNowLocal air qualityWallisville, Texas 77597
View AQI +
More weather details
Wind gustsNot reported
Rain now20%next hour
Humidity53%current
UV indexCheckingEPA forecast

Wind impact: Noticeable breeze with generally minor outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure29.96 in
Visibility10.0 mi
Peak rain chance20%
Dew point77°F
Active alerts1

Official risk outlooks

These national tools add expert storm, heavy-rain and flooding context to your local forecast.

Loading nearby traffic cameras…

Official tropical weather

Hurricane center

NOAA National Hurricane Center updates, outlooks, and storm resources in one place.

Stay weather-ready

Active NWS alerts

Weather safety ↗

Moderate · Expected

Heat Advisory

Applies to: Houston; Trinity; Madison; Walker; San Jacinto; Polk; Burleson; Brazos; Washington; Grimes; Montgomery; Northern Liberty; Colorado; Austin; Waller; Inland Harris; Chambers; Wharton; Fort Bend; Inland Jackson; Inland Matagorda; Inland Brazoria; Inland Galveston; Southern Liberty; Coastal Harris; Coastal Jackson; Coastal Matagorda; Coastal Brazoria; Coastal Galveston; Matagorda Islands; Brazoria Islands; Galveston Island; Bolivar PeninsulaIssued by: NWS Houston/Galveston TXHeat Advisory issued August 23 at 2:58PM CDT until August 24 at 7:00PM CDT by NWS Houston/Galveston TX
Alert details* WHAT...Peak heat index values between 106 and 110 * WHERE...Portions of south central and southeast Texas. * WHEN...Until 7 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Safety instructionsDrink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Visit local NWS office ↗