Sour Lake, TX Weather & Growing Conditions
Tonight
55°F
Patchy Fog then Mostly Cloudy
Patchy fog and a chance of showers and thunderstorms before 7pm, then patchy fog and a slight chance of showers and thunderstorms between 7pm and midnight. Mostly cloudy, with a low around 55. Northwest wind around 0 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Patchy Fog then Mostly Cloudy | 0 mph | 34% |
| Wednesday | 77°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 mph | 1% |
| Thursday | 79°F | Mostly Sunny then Slight Chance Rain Showers | 0 mph | 20% |
| Thursday Night | 58°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 21% |
| Friday | 79°F | Mostly Sunny | 0 to 5 mph N | 3% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 74°F | Mostly Sunny | 0 to 5 mph N | 8% |
| Saturday Night | 49°F | Slight Chance Rain Showers then Partly Cloudy | 0 mph | 16% |
| Sunday | 71°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph N | 15% |
| Sunday Night | 45°F | Mostly Clear | 0 mph | 3% |
| Monday | 73°F | Sunny | 0 mph | 2% |
| Monday Night | 45°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 76°F | Sunny | 0 mph | 1% |
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 Nov 4, 2026.