Lamar, TX Weather & Growing Conditions
Today
94°F
Slight Chance Rain Showers
A slight chance of rain showers before 1pm. Sunny, with a high near 94. Heat index values as high as 103. East southeast wind 6 to 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Slight Chance Rain Showers | 6 to 9 mph ESE | 17% |
| Tonight | 75°F | Mostly Clear | 0 to 9 mph ESE | 1% |
| Sunday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 9 mph E | 15% |
| Sunday Night | 76°F | Partly Cloudy | 0 to 8 mph ESE | 4% |
| Monday | 95°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 9 mph ENE | 18% |
| Monday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 8 mph E | 16% |
| Tuesday | 96°F | Sunny | 0 to 9 mph ENE | 13% |
| Tuesday Night | 75°F | Mostly Clear | 0 to 8 mph ENE | 10% |
| Wednesday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 12 mph ENE | 17% |
| Wednesday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph E | 17% |
| Thursday | 96°F | Slight Chance Showers And Thunderstorms | 2 to 14 mph ENE | 20% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 13 mph E | 17% |
| Friday | 95°F | Sunny then Slight Chance Rain Showers | 2 to 13 mph ENE | 16% |
| Friday Night | 74°F | Slight Chance Rain Showers then Mostly Clear | 2 to 12 mph E | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lamar, TX
Last spring frost
Feb 20
First fall frost
Dec 2
Growing season
284 days
Hardiness zone
9b
Explore more for Lamar, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Port Aransas 32 Nne, Tx (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.