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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

WhenTempForecastWindPrecip
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

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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.