Collinsville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Collinsville, a town in Grayson County, Texas.
Overnight
74°F
Mostly Clear
Mostly clear. Low around 74, with temperatures rising to around 76 overnight. Southeast wind around 5 mph.
7-day forecast for Collinsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Mostly Clear | 5 mph SE | 0% |
| Tuesday | 101°F | Sunny | 5 to 10 mph S | 1% |
| Tuesday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 1% |
| Wednesday | 101°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 78°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 99°F | Sunny | 5 to 10 mph SSW | 2% |
| Thursday Night | 77°F | Mostly Clear | 5 mph SSE | 2% |
| Friday | 98°F | Sunny | 5 mph S | 9% |
| Friday Night | 76°F | Mostly Clear | 5 mph SSE | 8% |
| Saturday | 97°F | Sunny | 5 mph S | 6% |
| Saturday Night | 76°F | Mostly Clear | 5 mph SSE | 6% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 4% |
| Sunday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 4% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 3% |
Forecast source: National Weather Service (api.weather.gov) for Collinsville (33.559, -96.907). Updated through the day.
Growing snapshot for Collinsville
Last spring frost
Mar 19
First fall frost
Nov 14
Growing season
242 days
Hardiness zone
8a
More local growing data for Collinsville: nearby ZIP 76233 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Gainesville 5 Ene, Tx (11.8 mi from Collinsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.