Harman US

Bison, OK Weather & Growing Conditions

Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 103. South southwest wind around 16 mph, with gusts as high as 24 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 100°F Sunny 16 mph SSW 10%
Tonight 73°F Slight Chance Showers And Thunderstorms 10 to 14 mph S 43%
Sunday 93°F Showers And Thunderstorms Likely 9 mph SSE 69%
Sunday Night 63°F Showers And Thunderstorms Likely 8 mph NNE 64%
Monday 83°F Slight Chance Rain Showers then Mostly Sunny 8 to 12 mph NNE 17%
Monday Night 59°F Partly Cloudy 7 to 10 mph NE 10%
Tuesday 79°F Mostly Sunny 10 mph NE 10%
Tuesday Night 56°F Partly Cloudy 6 to 10 mph ENE 5%
Wednesday 80°F Mostly Sunny 8 mph ENE 8%
Wednesday Night 58°F Partly Cloudy then Slight Chance Showers And Thunderstorms 5 to 8 mph E 17%
Thursday 83°F Chance Showers And Thunderstorms 3 to 7 mph SE 33%
Thursday Night 62°F Slight Chance Showers And Thunderstorms 7 mph ESE 23%
Friday 85°F Slight Chance Showers And Thunderstorms 5 to 8 mph SE 23%
Friday Night 63°F Mostly Cloudy then Slight Chance Rain Showers 5 to 8 mph ESE 17%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Bison, OK

Last spring frost
Apr 14
First fall frost
Oct 30
Growing season
198 days
Hardiness zone
7a

Explore more for Bison, OK: full frost dates · planting calendar · Oklahoma frost dates

Climate data from the nearest NOAA station, Hennessey 4 Ese, Ok (7.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.