Blackwell, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blackwell, a city in Kay County, Oklahoma.
Tonight
74°F
Mostly Clear
Mostly clear, with a low around 74. South wind around 9 mph.
7-day forecast for Blackwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Mostly Clear | 9 mph S | 1% |
| Saturday | 98°F | Sunny | 9 to 14 mph S | 6% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 to 12 mph S | 60% |
| Sunday | 90°F | Showers And Thunderstorms Likely | 7 mph SE | 60% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 6 mph NNE | 58% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms | 9 mph NNE | 23% |
| Monday Night | 58°F | Partly Cloudy | 6 to 9 mph NNE | 7% |
| Tuesday | 77°F | Mostly Sunny | 8 mph NE | 6% |
| Tuesday Night | 55°F | Partly Cloudy | 8 mph ENE | 2% |
| Wednesday | 78°F | Mostly Sunny | 7 mph E | 8% |
| Wednesday Night | 59°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph E | 21% |
| Thursday | 81°F | Chance Rain Showers | 6 mph E | 29% |
| Thursday Night | 61°F | Chance Rain Showers | 5 mph E | 25% |
| Friday | 81°F | Chance Rain Showers | 7 mph ESE | 25% |
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.