Collinsville, OK Weather & Growing Conditions
Today
97°F
Sunny
Sunny, with a high near 97. Heat index values as high as 103. South wind 10 to 15 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 10 to 15 mph S | 0% |
| Tonight | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph S | 22% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 52% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph N | 65% |
| Monday | 82°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 to 10 mph N | 65% |
| Monday Night | 61°F | Partly Cloudy | 10 mph N | 6% |
| Tuesday | 77°F | Mostly Sunny | 10 to 15 mph NE | 6% |
| Tuesday Night | 57°F | Mostly Clear | 10 mph NE | 3% |
| Wednesday | 79°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Wednesday Night | 59°F | Mostly Clear | 5 mph NE | 4% |
| Thursday | 81°F | Mostly Sunny | 5 mph E | 10% |
| Thursday Night | 62°F | Partly Cloudy | 5 mph E | 10% |
| Friday | 83°F | Slight Chance Rain Showers | 5 mph E | 18% |
| Friday Night | 64°F | Partly Cloudy | 5 mph E | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Collinsville, OK
Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
220 days
Hardiness zone
7a
Explore more for Collinsville, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Tulsa Intl Ap, Ok (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.