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Byars, OK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Byars, a town in Mcclain County, Oklahoma.

Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 98. South southwest wind around 9 mph.

7-day forecast for Byars

WhenTempForecastWindPrecip
Today 98°F Sunny 9 mph SSW 0%
Tonight 74°F Mostly Clear 8 mph S 2%
Sunday 95°F Showers And Thunderstorms Likely 6 to 9 mph S 67%
Sunday Night 66°F Showers And Thunderstorms Likely 2 to 6 mph ESE 67%
Monday 86°F Slight Chance Showers And Thunderstorms 2 to 7 mph NNE 55%
Monday Night 62°F Partly Cloudy 6 mph NNE 14%
Tuesday 81°F Mostly Sunny 9 mph NNE 14%
Tuesday Night 59°F Partly Cloudy 7 mph NE 8%
Wednesday 83°F Mostly Sunny 6 mph NE 10%
Wednesday Night 60°F Partly Cloudy 3 mph ENE 7%
Thursday 86°F Mostly Sunny 3 mph SE 9%
Thursday Night 63°F Partly Cloudy 3 mph E 7%
Friday 86°F Partly Sunny 3 mph ESE 11%
Friday Night 64°F Mostly Cloudy 3 mph E 8%

Forecast source: National Weather Service (api.weather.gov) for Byars (34.872, -97.054). Updated through the day.

Growing snapshot for Byars

Last spring frost
Mar 25
First fall frost
Nov 8
Growing season
228 days
Hardiness zone
7b

More local growing data for Byars: nearby ZIP 74831 weather · frost dates · planting calendar · Oklahoma frost dates

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Climate data from the nearest NOAA station, Byars 3Ese Mesonet, Ok (3.6 mi from Byars). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.