Brenham, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brenham, a city in Washington County, Texas.
Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. Northwest wind 0 to 5 mph.
7-day forecast for Brenham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 76°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 51°F | Clear | 0 mph | 0% |
| Thursday | 79°F | Sunny | 0 to 5 mph SE | 2% |
| Thursday Night | 58°F | Partly Cloudy | 0 to 10 mph W | 6% |
| Friday | 75°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 53°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 71°F | Partly Sunny | 5 to 10 mph N | 6% |
| Saturday Night | 50°F | Slight Chance Rain Showers | 5 mph N | 16% |
| Sunday | 66°F | Mostly Sunny | 5 to 10 mph N | 14% |
| Sunday Night | 46°F | Mostly Clear | 0 mph | 5% |
| Monday | 69°F | Sunny | 0 to 5 mph N | 3% |
| Monday Night | 47°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 72°F | Mostly Sunny | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov) for Brenham (30.158, -96.396). Updated through the day.
Growing snapshot for Brenham
Last spring frost
Mar 2
First fall frost
Nov 30
Growing season
273 days
Hardiness zone
9a
More local growing data for Brenham: nearby ZIP 77833 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Brenham, Tx (3.3 mi from Brenham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.