Lavon, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lavon, a city in Collin County, Texas.
Today
102°F
Sunny
Sunny, with a high near 102. Heat index values as high as 105. South wind 5 to 10 mph.
7-day forecast for Lavon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 102°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 77°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Wednesday | 98°F | Sunny | 5 to 10 mph SSW | 5% |
| Wednesday Night | 77°F | Mostly Clear | 5 to 10 mph SSE | 5% |
| Thursday | 97°F | Sunny | 5 to 10 mph SSW | 2% |
| Thursday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 2% |
| Friday | 98°F | Sunny | 5 to 10 mph S | 9% |
| Friday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Saturday | 95°F | Sunny | 5 mph S | 9% |
| Saturday Night | 76°F | Mostly Clear | 5 mph SSE | 9% |
| Sunday | 95°F | Sunny | 5 to 10 mph S | 5% |
| Sunday Night | 76°F | Mostly Clear | 10 mph SSE | 5% |
| Monday | 95°F | Sunny | 10 mph S | 6% |
| Monday Night | 76°F | Mostly Clear | 10 mph S | 6% |
Forecast source: National Weather Service (api.weather.gov) for Lavon (33.023, -96.437). Updated through the day.
Growing snapshot for Lavon
Last spring frost
Mar 10
First fall frost
Nov 19
Growing season
254 days
Hardiness zone
8b
More local growing data for Lavon: nearby ZIP 75166 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Lavon Dam, Tx (2.6 mi from Lavon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.