Calvin, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvin, a town in Hughes County, Oklahoma.
Tonight
47°F
Mostly Clear
Mostly clear, with a low around 47. West northwest wind 2 to 6 mph.
7-day forecast for Calvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Clear | 2 to 6 mph WNW | 1% |
| Wednesday | 69°F | Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 0 mph | 0% |
| Thursday | 69°F | Mostly Sunny then Chance Rain Showers | 1 to 7 mph W | 36% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 7 mph N | 11% |
| Friday | 65°F | Sunny | 3 to 7 mph N | 0% |
| Friday Night | 41°F | Partly Cloudy | 3 mph N | 0% |
| Saturday | 65°F | Mostly Sunny | 1 to 5 mph N | 1% |
| Saturday Night | 41°F | Mostly Clear | 1 mph NNW | 4% |
| Sunday | 69°F | Sunny | 0 to 3 mph NW | 3% |
| Sunday Night | 41°F | Clear | 1 mph NNW | 1% |
| Monday | 71°F | Sunny | 1 to 7 mph SW | 0% |
| Monday Night | 45°F | Mostly Clear | 3 mph S | 1% |
| Tuesday | 74°F | Sunny | 2 to 7 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Calvin (34.966, -96.250). Updated through the day.
Growing snapshot for Calvin
Last spring frost
Mar 29
First fall frost
Nov 5
Growing season
221 days
Hardiness zone
7b
More local growing data for Calvin: nearby ZIP 74531 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Holdenville 3Ese Mesonet, Ok (15 mi from Calvin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.