Blackwell, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blackwell, a city in Kay County, Oklahoma.
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 101. South wind 9 to 14 mph, with gusts as high as 21 mph.
7-day forecast for Blackwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 9 to 14 mph S | 12% |
| Tonight | 72°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 12 mph SSE | 61% |
| Sunday | 89°F | Showers And Thunderstorms Likely | 7 mph ESE | 61% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 7 mph NNE | 53% |
| Monday | 79°F | Slight Chance Rain Showers then Mostly Sunny | 10 mph NNE | 19% |
| Monday Night | 58°F | Partly Cloudy | 7 to 10 mph NNE | 8% |
| Tuesday | 75°F | Mostly Sunny | 8 mph NE | 6% |
| Tuesday Night | 54°F | Partly Cloudy | 8 mph ENE | 2% |
| Wednesday | 77°F | Mostly Sunny | 7 mph E | 5% |
| Wednesday Night | 57°F | Partly Cloudy | 6 mph E | 8% |
| Thursday | 79°F | Chance Rain Showers | 6 mph ESE | 31% |
| Thursday Night | 61°F | Slight Chance Rain Showers | 6 mph ESE | 23% |
| Friday | 81°F | Chance Rain Showers | 7 mph SE | 27% |
| Friday Night | 63°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 6 mph ESE | 17% |
Forecast source: National Weather Service (api.weather.gov) for Blackwell (36.801, -97.301). Updated through the day.
Growing snapshot for Blackwell
Last spring frost
Apr 12
First fall frost
Oct 29
Growing season
199 days
Hardiness zone
7a
More local growing data for Blackwell: nearby ZIP 74631 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Blackwell 1Ssw, Ok (1.3 mi from Blackwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.