Blackwell, OK Weather & Growing Conditions
Today
101°F
Mostly Sunny
Mostly sunny, with a high near 101. Heat index values as high as 101. South southeast wind 8 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Mostly Sunny | 8 to 12 mph SSE | 1% |
| Tonight | 77°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 8 to 12 mph SSE | 12% |
| Wednesday | 100°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 26% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 8 mph E | 26% |
| Thursday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 mph W | 21% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 8 mph ESE | 58% |
| Friday | 96°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 to 10 mph SSE | 58% |
| Friday Night | 73°F | Mostly Clear | 9 mph SSE | 11% |
| Saturday | 98°F | Sunny | 6 to 12 mph S | 11% |
| Saturday Night | 75°F | Clear | 12 mph S | 2% |
| Sunday | 99°F | Sunny | 8 to 14 mph S | 1% |
| Sunday Night | 75°F | Clear | 13 mph S | 0% |
| Monday | 99°F | Sunny | 10 to 15 mph S | 1% |
| Monday Night | 77°F | Mostly Clear | 14 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blackwell, OK
Last spring frost
Apr 12
First fall frost
Oct 29
Growing season
199 days
Hardiness zone
7a
Explore more for Blackwell, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Blackwell 1Ssw, Ok (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.