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Cartwright, OK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Cartwright, a community in Bryan County, Oklahoma.

This Afternoon
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 101. South southeast wind around 7 mph.

7-day forecast for Cartwright

WhenTempForecastWindPrecip
This Afternoon 100°F Sunny 7 mph SSE 0%
Tonight 75°F Mostly Clear 6 mph SSE 0%
Saturday 100°F Sunny 5 to 9 mph SSW 0%
Saturday Night 75°F Mostly Clear 6 to 9 mph S 2%
Sunday 100°F Mostly Sunny then Slight Chance Showers And Thunderstorms 9 mph S 16%
Sunday Night 72°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 2 to 7 mph S 59%
Monday 95°F Rain Showers Likely 1 to 6 mph WSW 59%
Monday Night 69°F Partly Cloudy 7 mph NE 11%
Tuesday 92°F Mostly Sunny 10 mph NNE 10%
Tuesday Night 67°F Partly Cloudy 6 to 9 mph NE 3%
Wednesday 92°F Mostly Sunny 8 mph ENE 7%
Wednesday Night 68°F Partly Cloudy 7 mph ENE 2%
Thursday 93°F Mostly Sunny 6 mph E 8%
Thursday Night 68°F Partly Cloudy 6 mph ENE 6%

Forecast source: National Weather Service (api.weather.gov) for Cartwright (33.855, -96.557). Updated through the day.

Growing snapshot for Cartwright

Last spring frost
Mar 14
First fall frost
Nov 19
Growing season
250 days
Hardiness zone
8a

More local growing data for Cartwright: nearby ZIP 74731 weather · frost dates · planting calendar · Oklahoma frost dates

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Climate data from the nearest NOAA station, Sherman, Tx (12.1 mi from Cartwright). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.