Harman US

Cartwright, OK Weather & Growing Conditions

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

Overnight
74°F
Mostly Clear
Mostly clear, with a low around 74. Southeast wind around 5 mph.

7-day forecast for Cartwright

WhenTempForecastWindPrecip
Overnight 74°F Mostly Clear 5 mph SE 0%
Tuesday 102°F Sunny 6 mph SSE 1%
Tuesday Night 78°F Mostly Clear 7 mph SSE 1%
Wednesday 102°F Sunny 5 to 9 mph SSW 1%
Wednesday Night 79°F Mostly Clear 8 mph S 0%
Thursday 101°F Sunny 8 mph SSW 3%
Thursday Night 78°F Mostly Clear 7 mph SSE 3%
Friday 98°F Mostly Sunny 5 to 8 mph S 12%
Friday Night 77°F Mostly Clear 8 mph SSE 12%
Saturday 98°F Sunny 7 mph S 7%
Saturday Night 77°F Mostly Clear 8 mph SSE 7%
Sunday 98°F Sunny 8 mph S 4%
Sunday Night 77°F Mostly Clear 8 mph SSE 4%
Monday 98°F Sunny 7 to 10 mph S 2%

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 Aug 4, 2026.