Calvert, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvert, a city in Robertson County, Texas.
Tonight
51°F
Partly Cloudy
Partly cloudy. Low around 51, with temperatures rising to around 53 overnight. North northwest wind around 5 mph.
7-day forecast for Calvert
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy | 5 mph NNW | 0% |
| Wednesday | 74°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 48°F | Patchy Fog | 0 mph | 0% |
| Thursday | 80°F | Patchy Fog then Sunny | 0 to 5 mph S | 12% |
| Thursday Night | 53°F | Partly Cloudy | 0 to 10 mph WNW | 13% |
| Friday | 74°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 48°F | Partly Cloudy | 5 mph N | 1% |
| Saturday | 71°F | Partly Sunny | 5 to 10 mph N | 8% |
| Saturday Night | 46°F | Partly Cloudy | 0 to 5 mph N | 6% |
| Sunday | 71°F | Mostly Sunny | 5 to 10 mph N | 4% |
| Sunday Night | 43°F | Mostly Clear | 0 to 5 mph N | 4% |
| Monday | 73°F | Sunny | 0 to 5 mph E | 3% |
| Monday Night | 44°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 76°F | Mostly Sunny | 0 to 5 mph SSE | 1% |
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 Nov 4, 2026.