Sour Lake, TX Weather & Growing Conditions
Today
93°F
Sunny
Sunny, with a high near 93. Heat index values as high as 101. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny | 0 to 5 mph E | 0% |
| Tonight | 71°F | Mostly Clear | 0 mph | 4% |
| Sunday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 21% |
| Sunday Night | 72°F | Partly Cloudy | 0 mph | 0% |
| Monday | 93°F | Sunny | 0 mph | 9% |
| Monday Night | 73°F | Mostly Clear | 0 mph | 9% |
| Tuesday | 95°F | Sunny | 0 mph | 11% |
| Tuesday Night | 73°F | Mostly Clear | 0 mph | 11% |
| Wednesday | 94°F | Sunny | 0 to 5 mph NE | 5% |
| Wednesday Night | 72°F | Mostly Clear | 0 mph | 5% |
| Thursday | 91°F | Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 70°F | Partly Cloudy | 0 mph | 4% |
| Friday | 90°F | Mostly Sunny | 0 to 5 mph NE | 4% |
| Friday Night | 69°F | Partly Cloudy | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sour Lake, TX
Last spring frost
Feb 18
First fall frost
Dec 2
Growing season
291 days
Hardiness zone
9a
Explore more for Sour Lake, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Beaumont Rsch Ctr, Tx (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.