Sweeny Weather Forecast
- 38
- 55
Increasing Clouds
- 58
- 68
Chance Rain Showers
- 61
- 73
Chance Rain Showers
- 50
- 78
Partly Sunny
- 53
- 67
Mostly Sunny
- 65
- 77
Partly Sunny
- 64
- 80
Partly Sunny
Today 15 Dec Inland Brazoria
Sunny, cooler with Highs in the lower 50s. Northeast Winds 5 to 10 Mph.
Tonight 15 Dec Inland Brazoria
Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 30s. East Winds around 5 Mph.
Sweeny Temperature Statistics
December Temperature
Bay City, Bay City Municipal Airport (10.6 miles)
Lowest 9 December, 2025
36 °FAverage December
55.5 °FHighest 13 December, 2025
79.7 °F
Climate (2020–Present)
Bay City, Bay City Municipal Airport (10.6 miles)
Average Low 2020–2025
61.6 °FAverage 2020–2025
70.1 °FAverage High 2020–2025
79.9 °F