Cromwell, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cromwell, a town in Seminole County, Oklahoma.
This Afternoon
65°F
Partly Sunny
Partly sunny. High near 65, with temperatures falling to around 59 in the afternoon. Northwest wind around 15 mph, with gusts as high as 23 mph.
7-day forecast for Cromwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Partly Sunny | 15 mph NW | 1% |
| Tonight | 46°F | Mostly Clear | 3 to 12 mph NW | 1% |
| Wednesday | 67°F | Sunny | 0 to 6 mph WNW | 0% |
| Wednesday Night | 46°F | Mostly Clear | 2 mph S | 0% |
| Thursday | 65°F | Partly Sunny then Chance Rain Showers | 2 to 7 mph SW | 53% |
| Thursday Night | 43°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 7 mph NNW | 16% |
| Friday | 62°F | Sunny | 7 mph N | 0% |
| Friday Night | 41°F | Partly Cloudy | 3 mph N | 0% |
| Saturday | 62°F | Mostly Sunny | 3 mph N | 1% |
| Saturday Night | 41°F | Mostly Clear | 1 mph NW | 3% |
| Sunday | 67°F | Sunny | 3 mph NW | 2% |
| Sunday Night | 41°F | Clear | 2 mph W | 0% |
| Monday | 70°F | Sunny | 2 to 7 mph SSW | 0% |
| Monday Night | 45°F | Mostly Clear | 3 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Cromwell (35.341, -96.460). Updated through the day.
Growing snapshot for Cromwell
Last spring frost
Mar 24
First fall frost
Nov 9
Growing season
229 days
Hardiness zone
7b
More local growing data for Cromwell: nearby ZIP 74837 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Okemah, Ok (10.3 mi from Cromwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.