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Air Quality Alert AIR QUALITY ALERT - Houston

NWS Southern Plains Regional Radar WU South Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 21-Sep-2026 4:21pm  
Summary / Temperature Wind Rain Outlook
Thunderstorm, Clear Thunderstorm, Clear
Currently: 95.0, Max: 97.7, Min: 75.0 95°F
Colder 2.5°F than last hour.

Heat Danger

Feels like: 116°F

24-hr difference
-1.3°FColder 1.3°F than yesterday at this time.
  Today Yesterday
High: 97.7°F
3:00pm 		98.2°F
4:00pm
Low: 75°F
6:45am 		70.9°F
6:40am
Wind from S S
4
Gust:
 9.2 mph
1 Bft - Light air
Today: 10.3 mph 3:10pm
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0.57 in
Season Total: 37.29 in
4 days since last rain.
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Humidity & Barometer Almanac Moon
Humidity: 63 % Increased 8.0% since last hour.
Dew Point: 80.4°F Increased 1.6°F since last hour.
Barometer: 29.84 inHg  
Baro Trend: Steady
Sunrise: 7:11am
Sunset: 7:21pm
Moonset: 2:13am
Moonrise: 4:34pm
Waxing Gibbous
Waxing Gibbous, Moon at 10 days in cycle
77%
Illuminated
UV Index Solar Radiation
   4     Medium 
High: 7 @ 11:15am
503.65 W/m2
High: 741.72 @  11:15am
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Hi 96 °F		 NWS forecast: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 106. Southeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
 
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear

Lo 76 °F		 NWS forecast: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 76. Heat index values as high as 102. Southeast wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.