Calvert, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvert, a city in Robertson County, Texas.
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 101. South wind around 10 mph.
7-day forecast for Calvert
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 10 mph S | 0% |
| Tonight | 77°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Wednesday | 98°F | Sunny | 5 to 10 mph S | 0% |
| Wednesday Night | 75°F | Mostly Clear | 5 to 10 mph S | 1% |
| Thursday | 99°F | Sunny | 5 to 10 mph S | 1% |
| Thursday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 3% |
| Friday | 97°F | Sunny | 5 to 10 mph S | 7% |
| Friday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 7% |
| Saturday | 96°F | Sunny | 5 mph S | 7% |
| Saturday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 7% |
| Sunday | 97°F | Sunny | 5 to 10 mph SSE | 4% |
| Sunday Night | 75°F | Mostly Clear | 5 to 10 mph SSE | 5% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 9% |
| Monday Night | 76°F | Mostly Clear | 5 to 10 mph S | 9% |
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 Aug 4, 2026.