National Weather Service Forecast for: Pecan Grove, TX
Issued by: National Weather Service Houston/Galveston/Dickinson, TX
Updated: Thu, 20-Aug-2026 1:21pm CDT
Richmond
 
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Friday

Friday: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Saturday

Saturday: Patchy Fog then Slight Chance Showers And Thunderstorms
Patchy Fog then Slight Chance Showers And T-Storms
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Sunny
Sunny
 
Hi 100 °F Hi 101 °F Hi 102 °F Hi 101 °F Hi 101 °F Hi 99 °F Hi 99 °F  
 
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Patchy Fog
Slight Chance Showers And T-Storms then Patchy Fog
Friday
Night
Friday Night: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog
Saturday
Night
Saturday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
 
Lo 78 °F Lo 78 °F Lo 78 °F Lo 78 °F Lo 77 °F Lo 78 °F Lo 78 °F  

Heat Advisory issued August 20 at 1:30PM CDT until August 21 at 7:00PM CDT
Heat Advisory issued August 20 at 6:17AM CDT until August 21 at 7:00PM CDT
 

This Afternoon
 
A slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 100. Heat index values as high as 111. South wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
 
A slight chance of showers and thunderstorms before 9pm, then patchy fog. Partly cloudy, with a low around 78. Heat index values as high as 111. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Friday
 
Patchy fog before 8am. Mostly sunny, with a high near 101. Heat index values as high as 110. Southwest wind around 5 mph.
Friday Night
 
Patchy fog after 4am. Mostly clear, with a low around 78. Heat index values as high as 108. South wind 5 to 10 mph.
Saturday
 
Patchy fog before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 102. South wind around 5 mph. Chance of precipitation is 20%.
Saturday Night
 
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Chance of precipitation is 20%.
Sunday
 
Sunny, with a high near 101.
Sunday Night
 
Mostly clear, with a low around 78.
Monday
 
Sunny, with a high near 101.
Monday Night
 
Mostly clear, with a low around 77.
Tuesday
 
Mostly sunny, with a high near 99.
Tuesday Night
 
Mostly clear, with a low around 78.
Wednesday
 
Sunny, with a high near 99.
Wednesday Night
 
Mostly clear, with a low around 78.

 

Forecast from NOAA-NWS for Pecan Grove, TX.