Thunderbird Bay, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thunderbird Bay, a community in Brown County, Texas.
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. South southeast wind around 5 mph.
7-day forecast for Thunderbird Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 5 mph SSE | 0% |
| Saturday | 97°F | Sunny | 5 mph S | 0% |
| Saturday Night | 71°F | Mostly Clear | 5 to 10 mph S | 2% |
| Sunday | 97°F | Mostly Sunny | 5 mph SSW | 14% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 49% |
| Monday | 95°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SSE | 40% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 26% |
| Tuesday | 92°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 10 mph ENE | 24% |
| Tuesday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph ENE | 24% |
| Wednesday | 92°F | Mostly Sunny | 5 to 10 mph E | 11% |
| Wednesday Night | 67°F | Partly Cloudy | 5 to 10 mph E | 7% |
| Thursday | 92°F | Mostly Sunny | 0 to 10 mph ESE | 6% |
| Thursday Night | 67°F | Partly Cloudy | 0 to 10 mph E | 6% |
| Friday | 91°F | Mostly Sunny | 0 to 10 mph ESE | 7% |
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 Sep 19, 2026.