Copan, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Copan, a town in Washington County, Oklahoma.
This Afternoon
66°F
Partly Sunny
Partly sunny. High near 66, with temperatures falling to around 61 in the afternoon. West wind 10 to 15 mph, with gusts as high as 30 mph.
7-day forecast for Copan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Partly Sunny | 10 to 15 mph W | 10% |
| Tonight | 45°F | Mostly Cloudy | 5 to 15 mph NW | 1% |
| Wednesday | 67°F | Sunny | 5 to 10 mph W | 0% |
| Wednesday Night | 47°F | Mostly Clear | 0 to 5 mph S | 1% |
| Thursday | 61°F | Chance Rain Showers | 0 to 5 mph W | 40% |
| Thursday Night | 42°F | Partly Cloudy | 5 mph NW | 5% |
| Friday | 62°F | Mostly Sunny | 5 mph N | 0% |
| Friday Night | 41°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 64°F | Partly Sunny | 0 to 5 mph N | 2% |
| Saturday Night | 40°F | Mostly Clear | 0 to 5 mph NW | 6% |
| Sunday | 65°F | Sunny | 5 mph NW | 4% |
| Sunday Night | 41°F | Mostly Clear | 0 to 5 mph SW | 3% |
| Monday | 69°F | Sunny | 0 to 5 mph S | 1% |
| Monday Night | 44°F | Mostly Clear | 0 to 5 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Copan (36.900, -95.925). Updated through the day.
Growing snapshot for Copan
Last spring frost
Apr 12
First fall frost
Oct 21
Growing season
192 days
Hardiness zone
7a
More local growing data for Copan: nearby ZIP 74022 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bartlesville F P Fld, Ok (11.2 mi from Copan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.