Calvert, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvert, a city in Robertson County, Texas.
Overnight
72°F
Mostly Clear
Mostly clear, with a low around 72. South southeast wind 0 to 5 mph.
7-day forecast for Calvert
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Mostly Clear | 0 to 5 mph SSE | 0% |
| Saturday | 97°F | Sunny | 0 to 10 mph SSE | 0% |
| Saturday Night | 73°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Sunday | 98°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Sunday Night | 75°F | Partly Cloudy | 5 mph SSE | 3% |
| Monday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 20% |
| Monday Night | 75°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 20% |
| Tuesday | 97°F | Sunny | 0 to 10 mph NNW | 12% |
| Tuesday Night | 74°F | Partly Cloudy | 0 to 10 mph NE | 12% |
| Wednesday | 96°F | Sunny | 5 to 10 mph NE | 8% |
| Wednesday Night | 73°F | Partly Cloudy | 0 to 10 mph ENE | 5% |
| Thursday | 95°F | Mostly Sunny | 5 to 10 mph ENE | 3% |
| Thursday Night | 72°F | Partly Cloudy | 0 to 10 mph E | 3% |
| Friday | 95°F | Mostly Sunny | 5 to 10 mph ENE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Calvert (30.979, -96.672). Updated through the day.
Growing snapshot for Calvert
Last spring frost
Feb 28
First fall frost
Nov 28
Growing season
277 days
Hardiness zone
9a
More local growing data for Calvert: nearby ZIP 77837 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Franklin, Tx (11.3 mi from Calvert). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.