Sweeny, TX Weather & Growing Conditions
This Afternoon
78°F
Sunny
Sunny. High near 78, with temperatures falling to around 75 in the afternoon. North wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 0 to 5 mph N | 0% |
| Tonight | 54°F | Mostly Clear | 0 mph | 0% |
| Thursday | 82°F | Sunny | 5 mph E | 12% |
| Thursday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 17% |
| Friday | 80°F | Sunny | 0 to 10 mph N | 3% |
| Friday Night | 58°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 77°F | Partly Sunny | 5 to 10 mph NE | 8% |
| Saturday Night | 54°F | Chance Rain Showers | 5 to 10 mph NE | 26% |
| Sunday | 67°F | Chance Rain Showers | 5 to 10 mph NE | 44% |
| Sunday Night | 50°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph N | 15% |
| Monday | 69°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph N | 16% |
| Monday Night | 50°F | Partly Cloudy | 0 mph | 4% |
| Tuesday | 73°F | Mostly Sunny | 0 to 5 mph N | 9% |
| Tuesday Night | 53°F | Partly Cloudy | 0 mph | 10% |
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 (14.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.