Sweeny, TX Weather & Growing Conditions
Today
79°F
Sunny
Sunny. High near 79, with temperatures falling to around 74 in the afternoon. North wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 5 to 10 mph N | 0% |
| Tonight | 55°F | Mostly Clear | 0 to 5 mph E | 0% |
| Thursday | 81°F | Mostly Sunny | 5 mph E | 11% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 36% |
| Friday | 81°F | Mostly Sunny | 5 to 10 mph N | 6% |
| Friday Night | 57°F | Partly Cloudy | 5 to 10 mph NE | 4% |
| Saturday | 77°F | Partly Sunny | 5 to 10 mph NE | 5% |
| Saturday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Sunday | 70°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph N | 18% |
| Sunday Night | 50°F | Partly Cloudy | 0 to 5 mph N | 10% |
| Monday | 72°F | Mostly Sunny | 5 mph NE | 8% |
| Monday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Tuesday | 75°F | Mostly Sunny | 5 mph E | 4% |
| Tuesday Night | 54°F | Mostly Cloudy | 0 to 5 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sweeny, TX
Last spring frost
Feb 20
First fall frost
Dec 3
Growing season
290 days
Hardiness zone
9b
Explore more for Sweeny, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Bay City Wtr Wks, Tx (16.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.