Mont Belvieu, TX Weather & Growing Conditions
Overnight
77°F
Mostly Clear
Mostly clear, with a low around 77. Southwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 77°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 94°F | Sunny | 0 to 10 mph S | 3% |
| Tuesday Night | 78°F | Mostly Clear | 0 to 10 mph S | 1% |
| Wednesday | 92°F | Sunny | 0 to 10 mph S | 8% |
| Wednesday Night | 78°F | Mostly Clear | 0 to 10 mph S | 7% |
| Thursday | 91°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph S | 17% |
| Thursday Night | 77°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph S | 17% |
| Friday | 91°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 34% |
| Friday Night | 77°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 34% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 29% |
| Saturday Night | 77°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 29% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 38% |
| Sunday Night | 78°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 38% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 10 mph S | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mont Belvieu, TX
Last spring frost
Feb 20
First fall frost
Dec 4
Growing season
292 days
Hardiness zone
9b
Explore more for Mont Belvieu, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Baytown, Tx (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.