Thunderbird Bay, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thunderbird Bay, a community in Brown County, Texas.
This Afternoon
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 68 in the afternoon. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Thunderbird Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 10 to 15 mph NW | 0% |
| Tonight | 46°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Wednesday | 72°F | Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 50°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 75°F | Sunny | 5 to 10 mph WSW | 0% |
| Thursday Night | 45°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Friday | 68°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 44°F | Partly Cloudy | 0 to 5 mph NNE | 4% |
| Saturday | 65°F | Slight Chance Rain Showers then Partly Sunny | 0 to 5 mph NNE | 15% |
| Saturday Night | 42°F | Partly Cloudy | 0 mph | 10% |
| Sunday | 68°F | Sunny | 0 to 5 mph N | 4% |
| Sunday Night | 42°F | Clear | 0 mph | 2% |
| Monday | 71°F | Sunny | 0 to 5 mph SW | 3% |
| Monday Night | 44°F | Mostly Clear | 0 to 5 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Thunderbird Bay (31.910, -99.021). Updated through the day.
Growing snapshot for Thunderbird Bay
Last spring frost
Mar 26
First fall frost
Nov 10
Growing season
230 days
Hardiness zone
8a
More local growing data for Thunderbird Bay: nearby ZIP 76857 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rising Star 1S, Tx (10.6 mi from Thunderbird Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.