Heat Advisory HEAT ADVISORY - Houston  - Richmond

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-Aug-2026 3:28am  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 78.1, Max: 81.0, Min: 78.3 78.1°F
Colder 0.7°F than last hour.

Comfortable

Feels like: 78°F

  Today Yesterday
High: 81°F
12:00am
99.7°F
4:00pm
Low: 78.3°F
3:25am
73.8°F
6:20am
 Calm SSW
0
Gust:
0 mph
0 Bft - Calm
Today: 3.4 mph 12:00am
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0.45 in
Season Total: 36.57 in
7 days since last rain.
Friday

Friday: Sunny
Sunny
Humidity & Barometer Almanac Moon
Humidity: 99 %  
Dew Point: 77.8°F Decreased 0.7°F since last hour.
Barometer: 29.99 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 6:54am
Sunset: 7:57pm
Moonset: 12:49am
Moonrise: 3:39pm
Waxing Gibbous
Waxing Gibbous, Moon at 8 days in cycle
62%
Illuminated
UV Index Solar Radiation
   0    None
High: 0 @ 12:00am
0 W/m2
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook: Overnight & Friday
Overnight

Overnight: Mostly Clear
Mostly Clear

Lo 78 °F
NWS forecast: Mostly clear, with a low around 78. Southwest wind around 5 mph.
 
Friday

Friday: Sunny
Sunny

Hi 101 °F
NWS forecast: Sunny, with a high near 101. Heat index values as high as 109. Southwest wind 0 to 5 mph.